Ross, R.; Sims, P. A.; Hasle, G. R. (1977). Observations on some species of the Hemiauloideae. In: R. Simonsen (ed.), Proceedings of the Fourth Symposium on Recent and Fossil Marine Diatoms, Oslo, August 30 - September 3, 1976. Beihefte zur Nova Hedwigia. 54: 179-214.
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Ross, R.; Sims, P. A.; Hasle, G. R.
1977
Observations on some species of the Hemiauloideae
In: R. Simonsen (ed.), Proceedings of the Fourth Symposium on Recent and Fossil Marine Diatoms, Oslo, August 30 - September 3, 1976. Beihefte zur Nova Hedwigia