@article{zu214149, title = {???????? ??????????? ??????????? ??????????? ??? ???????? ?????????? ??? ????????????? ?????? ????????}, author = {?. ?. ???? and ?. ?. ????????}, year = {2013}, pages = {162--165}, journal = {?????????? ???????????. ? 2013: ????????? IV ????.-???????. ??????. ????.}, url = {http://eprints.zu.edu.ua/14149/} }