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vzgli︠a︡d v XXI vek (4th 1998) Mezhdunarodnai︠a︡ nauchno-prakticheskai︠a︡ studencheskai︠a︡ konferent︠s︡ii︠a︡ "Ėkologii︠a︡ i ėkonomika: regionalʹnye problemy perekhoda k ustoĭchivomu razvitii︠u︡

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