She was a four-time Women's World Chess Championship challenger. She took second place behind Vera Menchik at the first Women's World Championship in London 1927, fourth place at Hamburg 1930, fourth place at Prague 1931, and 23rd at Stockholm 1937.
- Entry on the family website, retrieved on 8 February 2015
- Allan Werle in Schackkorrespondenten, 5/1983, as quoted in Chess Notes, item 9073 by Edward Winter, 28 January 2015
- Henrik Malm Lindberg: Det tidiga damschacket och Sveriges okända VM-tvåa, in: Schackkultur, issue 49/2014. Mentioned by the author in a letter to Edward Winter, published in Chess Notes, item 9078, 1 February 2015
- Women's World Chess Championship: Campeonato del Mundo Femenino (Spanish)
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