Østrup, E. (1902). Freshwater Diatoms [in Flora of Koh Chang. Part VII. Contributions to the knowledge of the gulf of Siam.John Schmidt (ed.). Preliminary Rept. Bot., Results Dan. Exped. to Siam (1899-1900)]. Botanisk Tidsskrift, 25(1): 28-41, pl. I.
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Østrup, E.
1902
Freshwater Diatoms [in Flora of Koh Chang. Part VII. Contributions to the knowledge of the gulf of Siam.John Schmidt (ed.). Preliminary Rept. Bot., Results Dan. Exped. to Siam (1899-1900)].