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Message * Estestvennye i Inzhenernye Nauki - Razvitii︠u︡ Regionov Materialy Mezhregionalʹnoĭ Nauchno-Tekhnicheskoĭ Konferent︠s︡ii 22-26 Apreli︠a︡ 2002 Goda - 5816600672 - 9785816600675