1. Bauer - Archive für Hydrobiologie, XL (4): 994-1008 (1945) (Translated by Jon Martin)
2. Beerman - Chromosoma 8: 1-11 (1956) (Translated by Jon Martin and Sean Werle)
3. Wuelker, Sublette and Martin - Annales Zoologici Fennici 5: 155-158 (1968) (Translated by Jon Martin)