1. Aksenova TG (1973) Structure of spermatozoan heads in some species of the genus Microtus (Rodentia, Cricetidae). Zool Zh 52:625–629
2. Aksenova TG (1978) The peculiarities of spermatozoan structure and their significance in systematics of grey voles (Rodentia, Microtus). Tr Zool Inst Akad Nauk SSSR 79:91–101
3. Ambaryan AB, Maltzev AN, Kotenkova EV (2015) Relationship between characteristics of sexual behavior and male sperm competitive ability in taxa of superspecies complex Mus musculus sensu lato. Zh Obshch Biol 76:212–224. https://pubmed.ncbi.nlm.nih.gov/26201218/
4. Baca M, Popović D, Lemanik A, Baca K, Horáček I, Nadachowski A (2019) Highly divergent lineage of narrow-headed vole from the Late Pleistocene Europe. Sci Rep 9:1–10. https://doi.org/10.1038/s41598-019-53937-1
5. Baskevich MI (1997) A comparative analysis of structural features of spermatozoa and karyotypes in three species of pine voles: Terricola majori, T. daghestanicus and T. subterraneus (Rodentia, Cricetidae) from the former USSR territory. Zool Zh 76:597–607. https://www.elibrary.ru/item.asp?id=14941621