^Hans Haase, "Stephani [Stephan, Stephanus], Clemens", The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell (London: Macmillan Publishers, 2001).
^Harry B. Lincoln, "Zoilo, Annibale", The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell (London: Macmillan Publishers, 2001).
^Frank Dobbins, "La Grotte [La Crotte], Nicolas de", The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell (London: Macmillan Publishers, 2001).
^James Haar, "Lassus: (1) Orlande de Lassus", The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell (London: Macmillan Publishers, 2001).
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