@article{zu22111, number = {16}, title = {???????????? ???????? ? ?????? ???? ?????}, author = {?. ?. ?????????}, year = {2004}, pages = {197--198}, journal = {?????? ????????????? ?????????? ???????????? ????? ????? ??????}, url = {http://eprints.zu.edu.ua/2111/}, abstract = {???????????? ? ????????? ????????? ?????? ????????, ??? ??????? ????????? ????????????? ???? ????????? ?????.} }