Author: Vserossiĭskai︠a︡ nauchnai︠a︡ konferent︠s︡ii︠a︡ "Problemy issledovanii︠a︡ pami︠a︡tnikov istorii, kulʹtury i prirody Evropeĭskoĭ Rossii" (4th 1993 Nizhniĭ Novgorod, Russia)