@article{zu218395, number = {2(13)}, title = {????????? ???????????????? ??????? ?????? ? ??????????? ???????????? ?????? ???????????}, author = {?. ?. ???????????}, publisher = {????????????? ??????????????? ???????????}, year = {2013}, pages = {101--104}, journal = {?????? ????? ???}, url = {http://eprints.zu.edu.ua/18395/} }