Khursevich, G.K. & Kociolek, J.P. (2008). Four new Cyclotella species from Pliocene lacustrine deposits in the U.S.A. In: Likhoshway, Y. (ed.), Proceedings of the Nineteenth International Diatom Symposium, Listvyanka, Irkutsk, Russia, 28th August - 3rd September 2006. Biopress Limited, Bristol, U.K., pp. 39-54