Tribune. 17 November 1996 [21 September 2021]. (原始内容存档于2023-09-08). HenriFriedlaender. biografischportaal.nl. [11 December 2021]. (原始内容存档于2023-09-06) (荷兰语)
R.; Patterson‐Fraser, Donna L.; Cimino, Megan A.; Torres, Leigh G.; Friedlaender, Ari S. Spatial niche partitioning may promote coexistence of Pygoscelis