Author: Mezhdunarodnai︠a︡ nauchno-prakticheskai︠a︡ konferent︠s︡ii︠a︡ "Chuvashskai︠a︡ pisʹmennostʹ: istorii︠a︡ i sovremennostʹ" (2011 Cheboksary, Chuvashia, Russia)