@article{zu26923,
           title = {??????? ??? ?????? ? ???????????? ???????? ????? ??????},
          author = {?????? ???????},
       publisher = {??? ????? ?.??????},
            year = {2011},
           pages = {129--134},
         journal = {???????????????? ??????. ?????? 5.},
             url = {http://eprints.zu.edu.ua/6923/}
}