@article{PismaZhETF.31.367,
    title = {Tunnel impurity autolocalization in semiconductors. Anomalous properties of the $Pb_{1-x}Sn_xTe$ compounds with In impurity},
    author = {Kagan, Yu. and Kikoin, K. A.},
    journal = {Письма в ЖЭТФ},
    volume = {31},
    issue = {6},
    pages = {367},
    year = {1980},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20315.shtml},
}