@article{PismaZhETF.16.392,
    title = {Positrons in Crystals with Defects},
    author = {Kokrushin, A. D. and Bardyshev, I. I.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {16},
    issue = {7},
    pages = {392},
    year = {1972},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26912.shtml},
}