@article{zu219897,
          volume = {16},
          number = {4},
           title = {????????????????? ?????? ?????????????? ?????????? AIIBVI ? PbBVI},
          author = {?. ?. ??????? and ?. ?. ??????? and ?. ?. ??????},
            year = {1980},
           pages = {635--637},
         journal = {?????????????? ?????????},
             url = {http://eprints.zu.edu.ua/19897/}
}