Hasle, G.R. (1971). Nitzschia pungiformis (Bacillariophyceae), a new species of the Nitzschia seriata Group. Norwegian Journal of Botany, 18(3-4): 139-144
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Hasle, G.R.
1971
Nitzschia pungiformis (Bacillariophyceae), a new species of the Nitzschia seriata Group