@article{zu219903,
          volume = {20},
          number = {12},
           title = {??????????????? ??????? PbTe-Cu ? PbTe-Cu2Te ??????? ??????? Pb-Te-Cu},
          author = {?. ?. ?????? and ?. ?. ???????},
            year = {1984},
           pages = {1972--1975},
         journal = {?????????????? ?????????},
             url = {http://eprints.zu.edu.ua/19903/}
}