@article{zu212825, title = {????????? ????????????? ???????????? ????? ?? ????? ?? ????????}, author = {?. ?. ?????????}, publisher = {???????? ??????????? ??????}, year = {2013}, pages = {20--31}, journal = {????????????? ????????? ? ?????????? ???????????????? ?????????? ???????? ?? ???????????? ???????? ??????: ????????????? ? ???????????}, url = {http://eprints.zu.edu.ua/12825/} }