Sterrenburg, F.A.S. (1993). Studies on the genera Gyrosigma and Pleurosigma (Bacillariophyceae). The identity of Pleurosigma obscurum W. Smith. Diatom Research, 8(2): 447-456
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Sterrenburg, F.A.S.
1993
Studies on the genera Gyrosigma and Pleurosigma (Bacillariophyceae). The identity of Pleurosigma obscurum W. Smith