Håkansson, H. & Kling, H. (1990). The current status of some very small freshwater diatoms of the genera Stephanodiscus and Cyclostephanos. Diatom Research, 5(2): 273-287
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Håkansson, H. & Kling, H.
1990
The current status of some very small freshwater diatoms of the genera Stephanodiscus and Cyclostephanos