@article{zu224721, volume = {2}, month = {????????}, author = {?. ?. ???????????}, title = {?????????? ???????? ???????? ? ???????? ???????????? ??????}, publisher = {??-? ?????????}, journal = {??????? ?????????? ?????????????? ???????-?????????? ??????????? ????????????? ?????????? ? ???????? ???????}, pages = {245--250}, year = {2017}, url = {http://eprints.zu.edu.ua/24721/} }