@article{zu220481,
           title = {? ??????? ???'????? ????? ?????? ?? ????????? ????? ????? ????????? ???. ????????},
          author = {?. ?. ??????},
       publisher = {??? ??. ?.??????},
            year = {2009},
           pages = {439--442},
         journal = {????? ? ???????: ??????? ? ??????????. ??????? ???????? ?????. - ???????},
             url = {http://eprints.zu.edu.ua/20481/}
}