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Koltun, V.M. (1964). Sponges (Porifera) collected in the Greenland seas and from the region to the north of the Spitzbergen and Franz Josef Land, from expeditions of the 'F. Litke' 1955, 'Obb' 1956 and 'Lena' 1957 and 1958. Scientific results of the higher latitudes. Oceanographic Expeditions to the northern part of the Greenland Sea and the adjacent arctic basin. Publications Arctic Antarctic Scientific Institute. 259: 143-166 in Russian.
Koltun, V.M. (1964). Sponges (Porifera) collected in the Greenland seas and from the region to the north of the Spitzbergen and Franz Josef Land, from expeditions of the 'F. Litke' 1955, 'Obb' 1956 and 'Lena' 1957 and 1958. Scientific results of the higher latitudes. Oceanographic Expeditions to the northern part of the Greenland Sea and the adjacent arctic basin. Publications Arctic Antarctic Scientific Institute. 259: 143-166 in Russian.
