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2. A. P. Vinogradov, “Chemical Elementary Composition of Marine Organisms,” Tr. Biogeokhim. Lab. Akad. Nauk SSSR 6(273). (1944).
3. G. N. Saenko, “Metals and Halogens in Marine Organisms,” (Nauka, Moscow, 1992) [in Russian].
4. A. P. Lisitsyn, Processes of Oceanic Sedimentation: Lithology and Geochemistry (Nauka, Moscow, 1978) [in Russian].
5. S. Petersen, “Hydrothermal Systems of the Modern Ocean Floor as a Perspective Mineral Resource of the 21th Century,” in Materials of the Work-Shop of the International InterRidge Project, Moscow, Russia, 2007 (Moscow, 2007), pp. 44–46.