@article{zu27286,
           title = {??????????? ????????? ?? ???????? ????? ????????? (Castor fiber) ??????????-??????????? ??????},
          author = {?. ?. ??????????? and ?. ?. ????????},
       publisher = {??? ??. ?. ??????, ???????},
            year = {2012},
           pages = {61--62},
         journal = {????????? ??? ???????-?????????? ?????????????? ??????????? ??????? ?????? ?? ????????? ??????????? ??????????? 2012?},
             url = {http://eprints.zu.edu.ua/7286/}
}