@article{zu217742,
          volume = {7},
          number = {4},
           title = {???????????? ??? ??????????????? ??????????????????? ?????},
          author = {?. ?. ??????????? and ?. ?. ??????? and ?. ?. ??????? and ?. ?. ???????},
            year = {2003},
           pages = {159--162},
         journal = {???????????? ???????? ??????},
             url = {http://eprints.zu.edu.ua/17742/}
}