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Message * Nauchnai︠a︡ Konferent︠s︡ii︠a︡ Pami︠a︡ti Nikolai︠a︡ Mikhaĭlovicha I︠a︡drint︠s︡eva, 29-30 Okti︠a︡bri︠a︡ 1992 G. Sekt︠s︡ii︠a︡ Geografii Sibiri : Tezisy Dokladov - 5826800178 - 9785826800171