Institution: | 1.OAO Leading Research Institute of Chemical Technology,Moscow,Russia;2.Fedorovskii Russian Research Institute of Mineral Products,Moscow,Russia;3.Institute of Geology, Komi Science Center, Ural Branch,Russian Academy of Sciences,Syktyvkar,Russia;4.Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry,Russian Academy of Sciences,Moscow,Russia |