@article{zu26795, number = {3}, title = {??????????? ???? ???????? ??????? ? ????}, author = {?. ?. ??????}, year = {2009}, pages = {86--88}, journal = {?????? ????????? ????????????-???????????? ?????? ???? ??????????????? ????????????? ???????????? ????? ?????? ?????????. ?????-??????????}, url = {http://eprints.zu.edu.ua/6795/} }