@article{zu229612, month = {????????}, title = {???????? ??????????? ? ?????????? ?? ?????????????}, author = {?. ?. ???????}, publisher = {??? ??. ?. ??????}, year = {2019}, pages = {103--106}, journal = {????????? ???????? ????????????? ????????? (??????? ???????? ?????)}, url = {http://eprints.zu.edu.ua/29612/} }