Author: Regionalʹnai︠a︡ nauchno-prakticheskai︠a︡ konferent︠s︡ii︠a︡ "Problemy i perspektivy razvitii︠a︡ obrazovanii︠a︡ v uslovii︠a︡kh severnykh gorodov" (5th 2008 Ni︠a︡ganʹ, Russia)