1. J. Overbeck undE. M. Stange-Bursche, Ber. dt. bot. Ges.78, 357 (1966).
2. R. Chodat, Z. Hydrobiol.3, 171 (1926).
3. H. Nakamura,Biological Knowledges on Species of Chlorella and Scenedesmus (Kyoritsu Women's University Kanda, Tokyo, Japan 1963), p. 15.
4. G. Uherkovich,Die Scenedesmus-Arten Ungarns (Akadémiai Kiadó, Budapest 1966), p. 13.
5. B. Fott, Acta Univ. Carol. Biol.1967, 192 (1968).