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Message * Problemy Ėnergosberezhenii︠a︡ Tezisy Dokladov Vsesoi︠u︡znoĭ Nauchno-Tekhnicheskoĭ Konferent︠s︡ii, 1-3 Okti︠a︡bri︠a︡ 1991 Goda, Kiev - 5770202637 - 9785770202632