@article{zu223014,
          volume = {26},
          number = {3},
           title = {?????????????????????? ???????? ???????????????????? ? ?????????? ?????? ? ???????????? ???????????},
          author = {?. ?. ??? and ?. ?. ????????},
            year = {1971},
           pages = {514--519},
         journal = {?????? ????????????? ?????},
             url = {http://eprints.zu.edu.ua/23014/}
}