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Message * Problemy Ėkologii i Zashchity Rasteniĭ V Selʹskom Khozi︠a︡ĭstve Sbornik Nauchnykh Stateĭ Po Materialam 70-Ĭ Nauchno-Prakticheskoĭ Konferent︠s︡ii, G. Stavropolʹ, 18-21 Apreli︠a︡ 2006 G. - 5959603640 - 9785959603649