Russia) Mezhdunarodnai︠a︡ nauchno-prakticheskai︠a︡ konferent︠s︡ii︠a︡-shkola-seminar molodykh uchenykh i aspirantov Peredovye tekhnologii v promyshlennosti i stroitelʹstve na poroge XXI veka (2nd 1999 Belgorod