@article{zu217729,
          volume = {50},
          number = {7},
           title = {n???????????????????????????????????? ? ??? ?????????? ??? ????????? ???????????? ??????????? ??????????? ?? ??????? ???????},
          author = {?. ?. ??????? and ?. ?. ?????????},
            year = {1980},
           pages = {1523--1528},
         journal = {?????? ????? ?????},
             url = {http://eprints.zu.edu.ua/17729/}
}