@article{zu214113,
          number = {20},
           title = {? ?????????? ????? ????????? ??????????? ? ???????? ?????????? ????? ? R3.},
          author = {?. ?. ???????????},
            year = {2010},
           pages = {139--148},
         journal = {????? ???? ??? ???????},
             url = {http://eprints.zu.edu.ua/14113/},
        abstract = {??? ???????? ?????????? ??????????? ???????? ???????????}
}