@article{zu219677, number = {3}, title = {???????? ?????? ? ???????? ? ???????? ?. ?. ??????? ?????? ????????}, author = {???????? ?????? and ?. ?. ????????}, publisher = {??????? "???????"}, year = {2015}, pages = {28--31}, journal = {???????}, url = {http://eprints.zu.edu.ua/19677/} }