Novakovskaya, I.V.; Boldina, O.N.; Shadrin, D.M.; Patova, E.N. Heterochlamydomonas uralensis sp. nov. (Chlorophyta, Chlamydomonadaceae), New Species Described from the Mountain Tundra Community in the Subpolar Urals (Russia). Diversity 2023, 15, 673. https://doi.org/10.3390/d15050673
Paul E. Hargraves & Richard L. Steele (1980) Morphology and ecology of Oltmannsiella virida, sp. nov. (Chlorophyceae: Volvocales), Phycologia, 19:2, 96-102, DOI: 10.2216/i0031-8884-19-2-96.1