1. Mineral composition and texture of ferromanganese nodules;P. F. Andrushchenko,1976
2. N. V. Astakhova and I. A. Vvedenskaya, “Chemical composition and genesis of ferromanganese deposits of submarine volcanoes and rises of the Sea of Japan,” Vulkanol. Seismol., No. 6, 36–43 (2003).
3. N. V. Astakhova, “Noble, rare-earth, and nonferrous metals in ferromanganese crusts from submarine volcanoes of the Sea of Japan,” Dokl. Earth Sci. 422 (7), 1161–1166 (2008).
4. N. V. Astakhova, O. N. Kolesnik, and V. T. S"edin, “Nonferrous, noble, and rare-earth metals in ferromanganese crusts and basalts of Belyaevsky Rise (Sea of Japan),” Vestn. KRAUNTs. Nauki O Zemle, No. 16, 152–166 (2010).
5. N. V. Astakhova and O. N. Kolesnik, “Accessory metals and ferromanganese crusts of the Galagan Ridge, Sea of Japan,” Tikhookean. Geol. 30 (6), 96–108 (2011).