@article{zu227623, title = {?????? ??????????? ???????? ????? ?????? ??????? ? ??????? ???? ? ????? ???????? (?? ???????? ?. ????????)}, author = {?. ?. ?????????? and ?. ?. ??????????????}, year = {2018}, pages = {366--368}, journal = {?????????? ??????????? ? 2018}, url = {http://eprints.zu.edu.ua/27623/} }