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Poleznye Iskopaemye krasnojarskogo kraja : <Železo, ugolʹ, nefelinovye porody>
Levčenko, S. V., (1959)
Geology and mineral resources of Japan
Murakoshi, Tsukasa, (1956)
Poleznye iskopaemye Čitinskoj Oblasti : (černye metally i nemetalličeskie poleznye iskopaemye)
Arsenʹev, Aleksej Aleksandrovič, (1959)