@article{zu222502,
          number = {5},
           title = {???????? ????????????? ??????? ????????? ?????? ? ????????? ? 6-???????-3-?????-??????????-???-4N-??????????????????},
          author = {?. ?. ??? and ?. ?. ????????},
            year = {1970},
           pages = {520--523},
         journal = {????????? ???????????},
             url = {http://eprints.zu.edu.ua/22502/}
}