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2. Guyots of the Western Pacific and their Ore Content, Ed. by Yu. G. Volokhin, M. E. Melnikov, E. L. Shkolnik, (Nauka, Moscow, 1995) [in Russian].
3. A. V. Dubinin, Geochemistry of Rare Earth Elements in the Ocean (Nauka, Moscow, 2006) [in Russian].
4. Ferromanganese Crusts and Concretions of the Seamounts of the Pacific Ocean, Ed. by A. P. Lisitsyn (Nedra, Moscow) [in Russian].
5. Cobalt-Rich Ores of the World Ocean (All-Russian Research Inst. Oceanology, 2002) [in Russian]