@article{zu225121, volume = {12}, title = {??????????? ?????? ???????????? ????? ????????????? ??????????? ?????????? ??? ???????? ??????}, author = {?. ?. ???????}, publisher = {?????????? ????? ???? ????????????? ???????????? ????????????}, year = {2014}, pages = {20--24}, journal = {??????? ??????????? ??????????}, url = {http://eprints.zu.edu.ua/25121/} }