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Message * Istoricheskai︠a︡ Geoėkologii︠a︡, Geografii︠a︡ i Prirodopolʹzovanie Novye Napravlenii︠a︡ i Metody Issledovanii︠a︡: Materialy Ii Mezhdunarodnoĭ Nauchnoĭ Konferent︠s︡ii, Sankt-Peterburg, 15-18 Apreli︠a︡ 2002 G - 5868130359 - 9785868130359