2. Beerman - Chromosoma 8: 1-11 (1956) (Translated by Jon Martin and Sean Werle)
3. Bukhteeva - Tsitologiya 16: 358-361 (1974)
4. Rodova - Biol. Vnutr. Vod Inf. Byull. 21: 44-47 (1971) (Translated by the Translation Bureau (NDE) Multilingual Services DivisionDepartment of the Secretary of State of Canada)
5. Rosin and Fischer - Archiv Julius Klaus-Stiftung 43: 31-40 (1968)
6. Rosin and Fischer - Revue Suisse de Zoologie 79: 119-141 (1972)
7. Wuelker, Sublette and Martin - Annales Zoologici Fennici 5: 155-158 (1968) (Translated by Jon Martin)
8. Yang & Wu - Acta Genetica Sinica 1: 144-148 (1980)