@article{zu212538, title = {????????? ????????: ???????????, ????????, ???????????}, author = {?. ?. ????????}, publisher = {??-? ?. ?????????}, year = {2013}, pages = {126--134}, journal = {???? ?? ?????????? ???????? ??????: ??????????-????????? ??????}, url = {http://eprints.zu.edu.ua/12538/} }