@article{zu21567, number = {34}, title = {???????? ??????? ?????????? ????????????? ????????? ????? ??????????}, author = {?. ?. ????}, year = {2007}, pages = {67--71}, journal = {?????? ????????????? ?????????? ???????????? ????? ????? ??????}, url = {http://eprints.zu.edu.ua/1567/}, abstract = {? ?????? ?????????? ??????? ???????????? ?? ????? ??????????? ???????? ?????????? ????????????? ????????? ????? ??????????. ?? ?????? ??????????? ?????????????? ?????? ?????????? ?????????? ????????????? ????????? ????? ???????????? ????????? ????????? ?????? ?? ?????? ??????????? ????????.} }