@article{zu221219, number = {2}, title = {??????? ??????????? ??????????? ?????? ? ??????? ????????? ??????? ??????? ?? ???????? ???????? ????? ???}, author = {?. ?. ?????????}, publisher = {????}, year = {2007}, pages = {86--91}, journal = {?????? ????????}, url = {http://eprints.zu.edu.ua/21219/} }