@article{zu217469, month = {???????}, title = {??????? ??????? ? ?????????? ?????????? ????????}, author = {?. ?. ??????? and ?. ?. ???????}, year = {2015}, pages = {290--296}, journal = {??????? ?????????? ?????????????? ???????-?????????? ??????????? "??????? ??????? ? ?????????? ??????????? ?????????"}, url = {http://eprints.zu.edu.ua/17469/} }