Russia) Konferent︠s︡ii︠a︡ "Problemy i perspektivy razvitii︠a︡ osobo okhrani︠a︡emykh prirodnykh territoriĭ Sankt-Peterburga" (2003 Saint Petersburg

Books by Russia) Konferent︠s︡ii︠a︡ "Problemy i perspektivy razvitii︠a︡ osobo okhrani︠a︡emykh prirodnykh territoriĭ Sankt-Peterburga" (2003 Saint Petersburg on BookTides.