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Medlin, L.K. ; Hasle, G.R. (1990). Some Nitzschia and related diatom species from fast ice samples in the Arctic and Antarctic. Polar Biology. 10: 451-479.
Medlin, L.K. ; Hasle, G.R. (1990). Some Nitzschia and related diatom species from fast ice samples in the Arctic and Antarctic. Polar Biology. 10: 451-479.