@article{zu229080, number = {18}, title = {???????? IV ???????????? ?????? ? ????????????? ?????? ??? ????? ?????? ? ????????????? ????????}, author = {?. ?. ????????????}, year = {2018}, pages = {209--216}, journal = {?????? ??????????? ????????????. ???????????-????????????? ??????}, url = {http://eprints.zu.edu.ua/29080/} }