Kiss, K.T., Acs, É, Szabo, K.E. Miracle, M.R. and Vincente, E. (2007) Morphological observations on Cyclotella distinguenda Hustedt and C. delicatula Hustedt from the core sample of a meromictic karstic lake of Spain (Lake La Cruz) with aspects of their ecology. Diatom Research 22 (2): 287-308.