@article{zu221461, title = {???????? ?????????? ? ???????????? ????}, author = {?. ?. ????? and ?. ?. ???????}, publisher = {???????: ???-?? ??? ??. ?. ??????, 2015. ? 198 ?.}, year = {2015}, pages = {171--175}, journal = {???????? ???????? ??????????: ??????? ???????? ????? / ?? ???. ?.?.????}, url = {http://eprints.zu.edu.ua/21461/} }