@article{zu219908,
          volume = {30},
          number = {3},
           title = {???????????? ??????? PbTe-Cu2S ??????? ???????? ??????? PbTe+Cu2S * PbS+Cu2Te},
          author = {?. ?. ?????? and ?. ?. ??????? and ?. ?. ??????? and ?. ?. ???????},
            year = {1994},
           pages = {346--349},
         journal = {?????????????? ?????????},
             url = {http://eprints.zu.edu.ua/19908/}
}