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Message * Miz︠h︡narodni Problemy Resursozabezpechenni︠a︡ Materialy Miz︠h︡vidomchoï Naukovo-Teoretychnoï Konferent︠s︡iï M. Kyïv, 24 Kvitni︠a︡ 2007 R. - 9660247826 - 9789660247826