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Message * Geologicheskai︠a︡ Sluzhba i Mineralʹno-Syrʹevai︠a︡ Baza Rossii Na Poroge Xxi Veka Doklady Na Plenarnom Zasedanii Vserossiĭskogo Sʺezda Geologov, 4 Okti︠a︡bri︠a︡ 2000 G., Sankt-Peterburg - 5937610326 - 9785937610324