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Message * Ėkologicheskai︠a︡ Geoplogii︠a︡ Teorii︠a︡, Praktika i Regionalʹnye Problemy : Materialy Vtoroĭ Mezhdunarodnoĭ Nauchno-Prakticheskoĭ Konferent︠s︡ii, 4-6 Okti︠a︡bri︠a︡, Voronezh 2011 - 5599815978 - 9785599815973