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2. A sampler for the selection of samples of water for bacteriological analysis;Sirokin;Bull. Inst. Reserv. Biol. Acad. Sci., U.S.S.R.,1960
3. Apparatus for collecting water samples from different depths for bacteriological analysis;Zobell;J. Mar. Res.,1941
4. Some effects of high hydrostatic pressure on apparatus observed on the Danish Galathea deep-sea expedition;Zobell;Deep-Sea Res.,1954