KHURSEVICH, G.K., V.V. MUKHINA, L.P. LOGINOVA, E.G. LUPIKINA, & I.A. KUPZOVA 1989 (Aug. 15) [The name validation of some species and combinations within the genus Cyclostephanos (Bacillariophyta)] Bot. Zhurn. 74(8): 1180-1182 R only; validation of names published in the genus before generic name was validly published |