@article{PismaZhETF.32.318,
    title = {On electromagnetic showers in crystalline media},
    author = {Akhiezer, A. I. and Shul'ga, N. F.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {32},
    issue = {4},
    pages = {318},
    year = {1980},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21698.shtml},
}