Cyanophyta (Cyanobacteria, Morphology, Taxanomy, Ecologi : Proceedings of the 10th Symposium of the AIC (International association for Cyanophyte research) Greece (Hellas) 1986 - Anagnostídis, Konstantínos, 1924-1994 (E. Schweitzerbart'sche Verlagsbuchhandlung, 1988)