Kodina, L. A.; Vlasova, L. N.; Bogacheva, M. P. (1993): O prevrashcheniyakh organicheskogo veshchestva osadkov v zone gidrotermal'noy aktivnosti basseyna Guaymas po dannym izotopno-geokhimicheskgo issledovaniya Alteration of organic materials in sediments from hydrothermal zones in the Guaymas Basin according to isotopic and geochemical data. Rossiyskaya Akademiya Nauk, Moscow, Russian Federation, Geokhimiya, 1993 (3), 435-448, georefid:1994-004042