@article{zu227707, title = {???????????? ??????? ??????????? ?????????? ??? ???????????? ?????? ??? ????}, author = {?. ?. ?????? and ?. ?. ????????}, publisher = {????????}, year = {2018}, pages = {424--428}, journal = {??????????? ????? ? ????? ??? ????}, url = {http://eprints.zu.edu.ua/27707/} }