@article{zu26294, number = {3}, title = {???? ????? ????? ?????? ?????????? ?. ?????? ?? ?. ?????????????}, author = {?. ?. ?????????????}, publisher = {???-?? ??? ??. ?. ??????}, year = {2009}, pages = {21--29}, journal = {???????????????? ??????}, url = {http://eprints.zu.edu.ua/6294/} }