You have requested access to download the full text of the source (SourceID: 268684):
Lange-Bertalot, H., Rumrich, U. & Hofmann, G. (1991). Zur Revision der Gattung Diatoma Bory (Subgenus Diatoma, Bacillariophyceae). Identifikation okologisch wichtiger, aber taxonomisch problematischer Arten. Acta Biologica Benrodis. 3: 115-130.