@article{zu23942, number = {2}, title = {??????????? ?????????? ?????????? ????? ? ?????? ????????-????????? ??????? ????????}, author = {?. ?. ?????? and ?. ?. ?????????}, publisher = {????}, year = {2007}, pages = {9--11}, journal = {??????. ?????????, ???????.}, url = {http://eprints.zu.edu.ua/3942/} }