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Message * Ėkologii︠a︡ Vladimirskogo Regiona Sbornik Materialov I︠u︡bileĭnoĭ Nauchno-Prakticheskoĭ Konferent︠s︡ii, 23 Dekabri︠a︡ 2000 G., G. Vladimir - 5893682769 - 9785893682762