@article{zu230787, number = {12}, title = {????????? ?????????? ?????? ????????????? ??????? ????? ???????? ?????????????: ?????, ????? ?? ????????}, author = {?. ?. ?????}, year = {2012}, pages = {25--32}, journal = {?????????? ???????????}, url = {http://eprints.zu.edu.ua/30787/} }