@article{zu215837,
          volume = {26},
          number = {1},
          author = {?. ?. ????????},
           title = {???? ????? ?????? ???????? (?? ???????? ??????????  ???????????? ??????? ??????????? ???????)},
       publisher = {????? ??????????. ?????????? ?????????????. ? 2012.},
         journal = {?????? ??????? ???????????? ????????????? ???????????? ??. ?.?. ???????????. ????? ??????????. ?????????? ?????????????.},
           pages = {51--56},
            year = {2012},
             url = {http://eprints.zu.edu.ua/15837/}
}