Dubinin, A.V. Geochemistry of rare earth elements in the formation of ferromanganese nodules in the Peruvian trough of the Pacific Ocean - Moscow Mank Hayka/Interperiodica Publishing Jul.-Aug. 1994 - pp. 322-336 ISSN: 0024-4902 Subjects--Topical Terms: GEOQUÍMICANODULOS DE MANGANESOTIERRAS RARAS Subjects--Geographic Terms: OCEANO PACIFICOPERU