@article{PismaZhETF.32.156,
    title = {Detection of impurity states in the photoluminescence spectra of $Pb_{1-x}Sn_xTe$(x\~0.2) solid solutions},
    author = {Zasavitskii, I. I. and Matsonashvili, B. N. and Shotov, A. P.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {32},
    issue = {2},
    pages = {156},
    year = {1980},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21659.shtml},
}