@article{zu217748, volume = {30}, number = {2}, title = {???????????? ????????????????????????????? ??????????????? ?????? ? ???????? ?????????? ????????}, author = {?. ?. ???????}, year = {1985}, pages = {233}, journal = {?????? ??????????? ??????????? ???????? ??. ?. ?. ??????????}, url = {http://eprints.zu.edu.ua/17748/} }