@article{zu214733, number = {2}, title = {????????????????? ????????? ???????? ?????? ???????? ???????? ? ???????}, author = {?????? ???????? and ?. ?. ???????????}, publisher = {??????? "???????"}, year = {2014}, pages = {29--31}, journal = {???????}, url = {http://eprints.zu.edu.ua/14733/}, abstract = {? ?????? ??????????? ???????? ????????? ????????????? ????????? ???????? ?????? ????????, ? ???????????? ??? ?????????????? ?????????????????} }