Communist Party of the Netherlands
|Communist Party of the Netherlands
Communistische Partij Nederland
|Leader||David Wijnkoop (1909–1925)
Lou de Visser (1925–1945)
Paul de Groot (1945–1967)
Marcus Bakker (1967–1982)
Ina Brouwer (1982–1991)
merged in to the GreenLeft
|Ideology||Marxism–Leninism (until 1982)|
|International affiliation||Comintern, Cominform|
|European Parliament group||Grael|
The Communist Party of the Netherlands (Dutch: Communistische Partij Nederland, Dutch pronunciation: [kɔmyˈnɪstisə pɑrˈtɛi ˈneːdərlɑnt], CPN) was a Dutch communist party. The party was founded in 1909 as the Social-Democratic Party (SDP) and merged with the Pacifist Socialist Party, the Political Party of Radicals and the Evangelical People's Party in 1991, forming the centre-left GreenLeft. Communists who didn't agreed with the merger founded the New Communist Party of the Netherlands.
In 1907 Jan Cornelis Ceton, Willem van Ravesteyn and David Wijnkoop founded De Tribune (The Tribune), a magazine in which they criticized the leadership of the Social Democratic Workers' Party (SDAP) of which they were members. They maintained orthodox marxist views and expected a proletarian revolution. They opposed the leadership of the SDAP, who were more oriented towards more a revisionist ideology and a parliamentary and reformist political strategy. At a party congress in Deventer held on February 14, 1909 the leadership of the SDAP demanded that they stop publishing De Tribune or be expelled from the party. Wijnkoop and Ceton refused and they and their supporters, including the poet Herman Gorter and the mathematician Gerrit Mannoury, left to form a breakaway party. This split was the first such split in Western European European Socialist parties, although others followed. There had already been a split between the Bolsheviks and Mensheviks in the Russian Social Democratic Labour Party and with the break away Tesnjaki group which broke from the Bulgarian Social Democratic Party. On March 14, 1919 the dissenters founded a new party called the Social-Democratic Party (SDP). They had a membership of around 400 spread across different cities: Amsterdam (160), Rotterdam (65), The Hague (45), Leiden (56), Utrecht (25), Bussum (15).
In the 1910s the SDAP paid much attention to attacking the newly formed SDP. The mobilization for the First World War, which the SDAP supported and the SDP opposed further strengthened the differences between the parties. The Russian Revolution of 1917 fractured most European parties between their revolutionary and reformist factions, which had already happened in the Netherlands. The party entered the 1917 elections but was unable to win any seats. In May 1918 the Left Wing founded the journal De Internationale uniting four opposition groups within the SDP, with groups in Amsterdam, Rotterdam and The Hague plus the Zimmerwald Left Propaganda Union. This group did not favour the parliamentarianism of the majority. The SDP entered the elections again in In July 1918.
1918 election 
(See table below) In the elections in July 1918 the Willem van Ravesteyn and Wijnkoop won two seats in parliament for the party and Wijnkoop assumed the leadership of the party. The SDP formed a revolutionary parliamentary party with the League of Christian Socialists, which had one seat and the Socialist Party, also with one seat. In 1919 Willy Kruyt, the MP for the League of Christian Socialists, joined the SDP while the MP for the Socialist Party left the revolutionary parliamentary party.
Revolutionary crisis and aftermath (1918–1922) 
As the German Revolution developed across the border, the Netherlands was also affected by strikes and mutinies. On 10 November the SDP called for the formation of Soldiers and Workers Councils with a view to forming a popular government. A week later at their Leiden Congress they decided to change their name to the Communist Party Holland (CPH). In 1920 prominent Left Communists Gorter and Pannekoek left the party to form the Communist Workers' Party of the Netherlands which advocated council communism. In the 1922 elections the CPH retained its two seats. One of its unsuccessful candidates that year, Tan Malaka, was the first subject of the colonial Dutch East Indies to run for office in the Netherlands.
Before the 1925 elections Wijnkoop was replaced as party leader by De Visser under pressures of the Comintern. This was the cause of heavy internal division within the party.Jacques de Kadt had already left the party in 1924 to help set up The League of Communist Struggle & Propaganda Clubs. In the background of several of these conflicts was the conflict in the Soviet Union between Joseph Stalin and Leon Trotsky. Wijnkoop, Henk Sneevliet a prominent international communist and an ally of Trotsky and other prominent membes were expelled from the party. Sneevliet founded the Revolutionary Socialist Union, which later becomes the Revolutionary Socialist Party (RSP). In 1926 the entire Rotterdam branch was expelled. These expellees joined Wijnkoop to form a separate Communist Party of Holland-Central Committee. All three, the RSP, the CPH-central committee and the old CPH (which ran under the name "CPH – Dutch section of the Communist International"), contested the 1929 elections and both CPHs won one seat each, whilst the RSP failed to win any. In 1930 the CPHs are forced to merge by the Comintern.
After the mutiny on the Zeven Provinciën in the same year the independence the Dutch Indies became an important theme in the 1933 election. The party performs particularly well, doubling its seats to four. Among those elected was the Indonesian nationalist Rustam Effendi, the first subject from the Dutch Indies to enter parliament. In the 1937 elections the party was able to retain its seats.
On May 15, 1940, immediately after the German occupation, the party decided to organize an underground movement. In July 1940 the Nazi occupation force banned the CPN. The party continued illegally. Together with the much smaller anti-Stalinist communist party RSAP the only pre-war organisation that already in 1940 protested against the anti-Semitic measures by the German occupiers. It founded a resistance movement called Raad van Verzet (Resistance Council). It published a resistance newspaper called De Waarheid (The Truth). Both took part in the February Strike in 1941, the largest act of resistance in the Netherlands. The party lost about 2000 lives during resistance; most victims fell because the pre-war Dutch intelligence services did not destroy their files about communists and continued their pre-war cooperation with the Gestapo and also continued their infiltration of the now underground party. After the war the same persons that betrayed the CPN in resistance formed the kernel of the newly formed secret service BVD.
After the war, the party was led by Paul de Groot, who had a strong grip on the party's organization. In 1945 the CPN is offered one minister in the cabinet Schermerhorn, mainly because of the CPNs role in the Dutch resistance. It refused because the CPN wanted a second minister. In 1946 the party obtained nearly 11% of the vote and 10 seats in the House of Representatives. It also the first time the party obtained seats in the Senate. The electoral victory is linked to the role of the CPN in the Second World War-resistance.
The following period was characterized by decreasing popularity for communism, the rise of internal divisions and the methodical isolation of the CPN by other parties.
With the rise of the Cold War, the party began to lose popularity. The 1948 communist coup in Czechoslovakia tainted the popularity of communism. In the 1948 elections the party lost two seats. In 1949 a group of Frisian communists were removed from the party ranks; they founded the Socialist Union, but they were unable to play a significant role in Dutch politics. In the 1952 elections the party lost two additional seats. In 1956 the CPN lost votes again, but because of the expansion of parliament it won an additional seat. In 1956 the party supported the Russian intervention against the Hungarian revolution. After the invasion the party bureau, in Felix Meritis in Amsterdam, was attacked by people who oppose the invasion.
Meanwhile internal dissent against the strict leadership of De Groot was rising. In 1958 the Bruggroep (Bridge group) leaves the CPN in a conflict over the role of the communist union the Eenheidsvakcentrale (Unity Trade Union). Leaders of the Bruggroup were prominent resistance figures like Gerben Wagenaar and Henk Gortzak. The secret service claimed to be behind the split, while the CPN leadership claimed that the dissenters were agents working for the U.S. Central Intelligence Agency. The Bruggroup founded a new party, the Socialistische Werkers Party (Socialist Workers' Party, SWP). In 1957 the Pacifist Socialist Party was founded. The PSP united former members of the CPN, including members of the Socialist Union, and the Dutch Labour Party (PvdA) and other leftwing independents. In the following 1959 elections the CPN lost all but three seats, while the PSP won two seats, and the SWP was unable to win any seats. Many SWP members, like Gortzak, later joined the PSP.
In the 1940s and 1950s the CPN was methodically isolated by other parties. Civil servants were forbidden to become members of the CPN and it was not allowed separate time on public radio or television. The party's unequivocal support for decolonization of the Dutch Indies isolated the party in parliament. Because of its anti-NATO and European Economic Community stances the party was blocked from the Foreign Affairs, Defense and Nuclear Energy committees in parliament. The Dutch secret service kept close tabs on the party. All other parties in parliament were deeply anti-communist, especially the social-democratic PvdA.
In the 1963 elections the party gained one seat. The developing students' movement is an important impetus for the party. In 1964 the international conflict between the People's Republic of China and USSR also split the CPN. A group called Communist Unity Movement of the Netherlands left the CPN in that year. They went through several intense splits based on ideological and personal conflicts. In 1971 one of the small groups formed the Socialist Party, which became a successful political party from the mid-1990s. The CPN took a rather ambiguous stance in the conflict between the USSR and the PRC.
Before the 1967 elections De Groot was replaced by Marcus Bakker. De Groot was made an honorary member of the CPN. The party won another seat, making the total five. The CPN condemned the Soviet intervention against the Prague Spring. In 1971 yet another seat was added, and in 1972 the party had seven seats. The 1977 election saw a conflict between the social-democrat Joop den Uyl and the Christian-democrat Dries van Agt. Many CPN sympathizers voted for the social-democratic PvdA and the CPN lost all but two seats. In 1978 under pressure from new young members De Groot lost his honorary membership. In the 1981 elections the placement of American nuclear weapons is a major issue. The CPN, which prominently led one of the campaigning groups, The Committee against the N-bomb, was rewarded with another seat.
In the 1982 the party got its first mayor in the Communist stronghold of Beerta. Before the elections of the same year Marcus Bakker stepped down in favour of Ina Brouwer. With her a new generation of younger, often female MPs entered politics. She was able to keep the three seats. The CPN tried to renew its political program, emphasizing New Left issues like feminism and gay rights. In reaction to this working class-oriented members founded the Horizontal Council of Communists (called so because they were members from different local branches, breaking the vertical organization of democratic centralism). The group tried to pressure the CPN into returning to its Old Left course. In 1983 they left the party and formed the League of Communists in the Netherlands (Verbond van Communisten In Nederland). In 1986 both the CPN and VCN contested the elections. Neither won a seat in the House of Representatives. The CPN still had two senators. As one of the last acts of the party, the party leadership attended the festivities surrounding 40th anniversary of the German Democratic Republic.
In 1989 the party merged with three other small leftwing parties, namely the Pacifist Socialist Party (PSP), the left-wing Christian Political Party of Radicals (PPR) and the Evangelical People's Party (EVP) to form the GreenLeft. In 1991, the party officially disbanded; the VCN was joined by other former members of the CPN, who left because they disagreed with the new course, and founded the New Communist Party of the Netherlands (NCPN), which still exists today.
There is no influence left of the old Marxist wing of the CPN in GreenLeft. The "new" generation has been very prominent: Ina Brouwer led the party in the 1994 elections and one of the party's senators Jos van der Lans was a member of the CPN. The former party chair who was very influential in the formulation of the new liberal course, Herman Meijer, was one of the gay right activists who joined the CPN in the 1970s.
The CPN changed its name two times. It was originally founded as Sociaal-Democratische Partij (Social-Democratic party; SDP). It followers were commonly known as 'Tribunists' after their main organ. After the Russian Revolution the term social-democracy became linked to the reformist socialists, while the term communist was linked to Leninist revolutionary socialism. All sections of the Comintern were obliged to adopt the name 'Communist Party'. In 1919 the party changed its name to Communistische Partij Holland (Communist Party Holland; CPH). The name implied that the CPH was the Dutch section of the worldwide Communist International. In 1935 the party changed its name to Communistische Partij van Nederland (Communist Party of the Netherlands; CPN), to express, its allegiance to the Netherlands and Dutch institutions.
Ideology and issues 
Ideological development 
The SDP was founded as an orthodox Marxist party advocating an economic and social revolution that would overthrow the capitalist economic and political system, in favour for a socialist dictatorship of the proletariat, which would in turn evolve into a classless, communist society. They broke away from the SDAP, when the reformist leadership blocked their publication of an autonmous journal.
After the Russian Revolution the party adopted the name Communist and with the departure of the Left-wing grouped around De Internationale, the party adopted Marxism–Leninism, the official ideology of the USSR and the Comintern. This advocated the overthrow of the state by a vanguard party, which would lead the country towards socialism. The party remained faithful to the USSR's version of Marxism–Leninism during the 1920s, when Trotsky's interpretation became an important ideological competitor of Joseph Stalin's. This led to a split when a group around a prominent ally of Trotsky, Henk Sneevliet, left the party to form the Revolutionary Socialist Party (RSP).
In the 1960s the party did not choose sides in the conflict between the People's Republic of China and the USSR. Nevertheless a Maoist group, called the Communist Unity Movement of the Netherlands split from the Party. In the 1970s and 1980s the Party began to move away from its Marxist/Leninist roots and began embrace a more libertarian and Eurocommunist programme with a strong emphasis on feminism.
Social policy 
An important issue for the Communists has always been the practical needs of the working class. Most simply put the party advocated higher wages and lower prices. They also felt that work conditions in factories should be improved, that child labour should be banned completely, that the work day should be regulated and that laws against striking should be repealed.
The CPN advocated a strong role of the state in the economy. They believed the state should supply cheap housing, free and neutral education and health care insurance. They felt that important industries should be nationalized in the short term (in the long term the entire economy should be planned), that taxation should be progressive and that those without jobs should receive benefits.
Foreign policy 
One of the most important early issues of the Communists was their opposition to the First World War. After 1918 the recognition of the USSR and the independence of Indonesia became important issues. During the Second World War the party was active in resistance movement. After the war, its foreign policy was explicitly anti-German and pro-USSR. It favoured Soviet interventions in Czechoslovakia and Hungary and sought Dutch recognition of the East Germany. It opposed Dutch membership of NATO and the European Economic Community. In the 1970s and 1980s its policy became more critical of the USA, supporting the National Front for the Liberation of South Vietnam in the Vietnam War. It played an important role in the popular opposition against the placement of nuclear weapons in the Netherlands.
Domestic issues 
The party also emphasised the radical democratisation of the Dutch political system. It opposed monarchy. It sought to abolish the Council of State and the Senate. A referendum and trial by jury should be implemented. Citizen should appoint civil servants.
This table shown the CPN's results in elections to the House of Representatives, Senate, States-Provincial and European elections, as well as the party's political leadership: the fractievoorzitter, is the chair of the parliamentary party and the lijsttrekker is the party's top candidate in the general election, these posts are normally taken by the party's leader. The membership of CPN is also represented.
|1918||2||0||0||n/a||David Wijnkoop||David Wijnkoop||unknown|
|1919||3||0||8||n/a||David Wijnkoop||no elections||unknown|
|1920||3||0||8||n/a||David Wijnkoop||no elections||unknown|
|1921||3||0||8||n/a||David Wijnkoop||no elections||unknown|
|1922||2||0||8||n/a||David Wijnkoop||David Wijnkoop||unknown|
|1923||2||0||7||n/a||David Wijnkoop||no elections||unknown|
|1924||2||0||7||n/a||David Wijnkoop||no elections||unknown|
|1925||1||0||7||n/a||Lou de Visser||Lou de Visser||unknown|
|1926||1||0||7||n/a||Lou de Visser||no elections||unknown|
|1927||1||0||7||n/a||Lou de Visser||no elections||unknown|
|1928||1||0||7||n/a||Lou de Visser||no elections||unknown|
|1929||1+1*||0||7||n/a||Lou de Visser
|Lou de Visser
|1930||1+1*||0||7||n/a||Lou de Visser
|1931||2||0||10||n/a||Lou de Visser||no elections||unknown|
|1932||1||0||10||n/a||Lou de Visser||no elections||unknown|
|1933||4||0||10||n/a||Lou de Visser||Lou de Visser||unknown|
|1934||4||0||10||n/a||Lou de Visser||Lou de Visser||unknown|
|1935||4||0||12||n/a||Lou de Visser||no elections||unknown|
|1936||4||0||12||n/a||Lou de Visser||no elections||unknown|
|1937||4||0||12||n/a||Lou de Visser||Lou de Visser||unknown|
|1938||4||0||12||n/a||Lou de Visser||no elections||unknown|
|1939||4||0||12||n/a||Lou de Visser||no elections||unknown|
|1940||out of session||no elections||unknown|
|1941||out of session||no elections||unknown|
|1942||out of session||no elections||unknown|
|1943||out of session||no elections||unknown|
|1944||out of session||no elections||unknown|
|1945||out of session||no elections||unknown|
|1946||10||4||58||n/a||Paul de Groot||Paul de Groot||50,000|
|1947||10||4||58||n/a||Paul de Groot||no elections||53,000|
|1948||8||4||58||n/a||Paul de Groot||Paul de Groot||53,000|
|1949||8||4||58||n/a||Paul de Groot||no elections||34,000|
|1950||8||4||31||n/a||Paul de Groot||no elections||27,392|
|1951||8||3||31||n/a||Paul de Groot||no elections||unknown|
|1952||6||3||31||n/a||Paul de Groot||no elections||unknown|
|1953||6||2||31||n/a||Paul de Groot||Paul de Groot||17,000|
|1954||6||2||24||n/a||Paul de Groot||no elections||unknown|
|1955||6||2||24||n/a||Paul de Groot||no elections||15,463|
|1956||7||4||24||n/a||Paul de Groot||no elections||unknown|
|1957||7||4||24||n/a||Paul de Groot||no elections||12,858|
|1958||7||4||18||n/a||Paul de Groot||no elections||12,317|
|1959||3||4||18||n/a||Paul de Groot||Paul de Groot||11,262|
|1960||3||2||18||n/a||Paul de Groot||no elections||unknown|
|1961||3||2||18||n/a||Paul de Groot||no elections||unknown|
|1962||3||2||13||n/a||Paul de Groot||no elections||unknown|
|1963||4||1||13||n/a||Paul de Groot||Paul de Groot||unknown|
|1964||4||1||13||n/a||Paul de Groot||no elections||unknown|
|1965||4||1||13||n/a||Paul de Groot||no elections||unknown|
|1966||4||1||13||n/a||Paul de Groot||no elections||unknown|
|1967||5||1||13||n/a||Marcus Bakker||Marcus Bakker||unknown|
|1968||5||1||13||n/a||Marcus Bakker||no election||unknown|
|1969||5||1||13||n/a||Marcus Bakker||no election||unknown|
|1970||5||1||27||n/a||Marcus Bakker||no election||unknown|
|1971||6||3||27||n/a||Marcus Bakker||Marcus Bakker||unknown|
|1972||7||3||27||n/a||Marcus Bakker||Marcus Bakker||unknown|
|1973||7||3||27||n/a||Marcus Bakker||no election||10,147|
|1974||7||4||19||n/a||Marcus Bakker||no election||unknown|
|1975||7||4||19||n/a||Marcus Bakker||no election||unknown|
|1976||7||4||19||n/a||Marcus Bakker||no election||11,550|
|1977||2||2||19||n/a||Marcus Bakker||Marcus Bakker||13,082|
|1978||2||2||5||n/a||Marcus Bakker||no election||15,298|
|1979||2||2||5||0||Marcus Bakker||no election||14,979|
|1980||2||1||5||0||Marcus Bakker||no election||15,510|
|1981||3||1||5||0||Marcus Bakker||no election||15,014|
|1982||3||2||14+5**||0||Ina Brouwer||Ina Brouwer||14,370|
|1983||3||2||14+5**||0||Ina Brouwer||no election||14,370|
|1984||3||2||14+5**||1||Ina Brouwer||no election||13,868|
|1985||3||2||14+5**||1||Ina Brouwer||no election||11,594|
|1986||0||2||4+4**||1||Cees IJmkers***||Ina Brouwer||9,000|
|1987||0||2||4+4**||1||Fenne Bolding***||no elections||8,500|
|1988||0||2||4+4**||1||Fenne Bolding***||no elections||7,000|
* separate CPH-Central Committee party.
** estimate of the seats in combined CPN/PSP/(PPR) lists.
*** chair of the parliamentary party in the Senate.
Municipal and provincial government 
The party supplied only one mayor, namely Hanneke Jagersma in the CPN stronghold of Beerta. In the late 1940s the CPN participated in several local executives but after the USSR's intervention in Hungary, these all fell. In the 1950s the party got an absolute majority in the municipal council of Finsterwolde the municipality was consequently put under control of the national government. In the 1980s the party again started to cooperate in local executives.
In the following figure one can see the election results of the provincial election of 1962 by province. It shows the areas where the CPN was strong, namely North Holland and to a lesser extent Groningen and South Holland. The party was very weak in rural and catholic Limburg and Brabant.
The support for the SDP, which was founded before the introduction of universal suffrage, was strong among leftwing intellectuals and educated working class circles. This was mainly limited to Amsterdam and Rotterdam. With the introduction of universal suffrage, the SDP, and later CPH began to branch out to the poorest circles of the working classes. In the Zaanstreek, around Zaandam and the harbour cities of Amsterdam and Rotterdam the party was especially strong. After the Second World War, the CPN branched out to the poor rural province of Groningen and other poor rural areas like West Friesland. In some Groningen municipalities like Finsterwolde, Beerta, the party won near absolute majorities. In these municipalities, which now form Reiderland the refounded CPN, NCPN still performs particularly well. In the 1950s the general support for the CPN weakened with the rise of Cold War. In the 1960s and 1970s the CPN began to gain support form students. In the 1980s the party lost its working class support.
Organizational structure 
The party was organized on the principle of democratic centralism. The party's board was the highest organ of the party, it decided the order of candidates on election lists for the Senate, House of Representatives and European Parliament, had the final say over the party program and had the ability to expel members. It was elected by the party's Congress. The party saw its political unity and strong discipline as conditions for its ideological zeal.
Between 1946 and 1980, the party's headquarters was in Felix Meritis in Amsterdam.
Linked and pillarized organisations 
The party had a small, but strong communist pillar around it. Important organizations were the communist trade union, the Rode Vakcentrale (Red Trade Union) before 1940 and the Eenheidsvakcentrale (Unity Trade Union) between 1945 and 1960, and the party's paper, De Tribune (the Tribune) before 1940 and De Waarheid (The Truth), which was founded as a resistance paper and named after its Soviet counterpart after 1940. The party's youth organization was the formally independent General Dutch Youth League. The party's scientific organization was the Instituut voor Politiek en Sociaal Onderzoek (Institute for Political and Social Research) which published Politiek en Cultuur (Politics and Culture). The CPN had its own publisher called Pegasus.
International organisations 
Relationships to other parties 
For a long time the Communists were methodically isolated, partially because of its revolutionary ideology and partially because of the antagonistic style of its politics. The communists used this style to prevent its electorate from moving to its competitors.
The relationship between the Social Democratic Workers' Party (before the Second World War) and the PvdA (after the Second World War) was always troublesome. The SDP split from the SDAP over ideological differences, orthodox Marxist, revolutionary politics versus revisionist and reformist politics. The social-democrats saw the communists as insignificant while the communists taunted the social-democrats by calling them "servants to capitalism" and "social fascists". During the Cold War, the PvdA embraced Atlanticism, NATO and the alliance with the United States, while the CPN advocated stronger links with the USSR. The PvdA had the strongest anti-communists in its ranks. During the 1970s when a more radicalized PvdA advocated a large progressive coalition, they still excluded the CPN.
The relationship between leftwing splinter groups and the communists was notoriously bad. The CPH ignored the Revolutionary Socialist Party during its four-year term in the 1930s. The Pacifist Socialist Party, which was partially composed of those expelled from the CPN, was denounced as a party of agents of the U.S. Central Intelligence Agency. The CPN methodically voted against proposals of the PSP, even when they supported them. In the 1980s the PSP and the CPN grew closer as they both campaigned against nuclear armament and both began to embrace New Left and libertarian politics. In 1984 they formed a common list for the European Election together with the green Political Party of Radicals (PPR) and the The Greens. In the 1989 the CPN, PSP and PPR were joined by the leftwing Christian Evangelical People's Party in the formation of the GreenLeft.
Relationships with the other parties whether liberal or Christian democratic was very poor.
International comparison 
The CPN is one of the few Communist parties to be formed before the Russian Revolution. It lies between the Northern European Communist Parties, like the Communist Party of Sweden and the Southern European communist parties, like the Italian Communist Party. Like its Italian counterparts, and unlike its Swedish counterparts it was methodically isolated in parliament. Like its Swedish counterparts, but unlike its Italian counterparts, it gained around 5% of the vote. Like its Italian counterpart it was closely linked to Moscow until the 1960s. In the 1970s it became involved in New Left politics, like its Swedish counterpart.
- Horstmeier, Carel (2000). "The relations between te Dutch and Russian communists 1907–1920". NRAC. p. 1. Retrieved August 4, 2012.
- van Ravesteyn, Willem (1948). "De wording van het communisme in Nederland 1907–1925". P. N. Van Kampen en zoon nv. Retrieved August 4, 2012.
- "Glossary of Organisations: Tr". Marxists.org. Retrieved 2010-09-07.
- Koole, R. Politieke Partijen in Nederland, p.260