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Message * Ėkologicheskie Problemy Gornogo Proizvodstva, Pererabotka i Razmeshchenie Otkhodov Vtorai︠a︡ Nauchno-Tekhnicheskai︠a︡ Konferent︠s︡ii︠a︡, Moskva, 30 I︠a︡nvari︠a︡-3 Fevrali︠a︡ 1995 Goda : Doklady - 574180084X - 9785741800843