Sterrenburg, F.A.S. (1994). Studies on the genera Gyrosigma and Pleurosigma (Bacillariophyceae). Proceedings of the Academy of Natural Sciences of Philadelphia, 145: p. 217-236
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Sterrenburg, F.A.S.
1994
Studies on the genera Gyrosigma and Pleurosigma (Bacillariophyceae)
Proceedings of the Academy of Natural Sciences of Philadelphia