@article{PismaZhETF.35.254,
    title = {Time evolution of the secondary cosmic radiation during the magnetic storm of 20 August 1979},
    author = {Iyudin, A. F. and Kirillov-Ugryumov, V. G. and Kotov, Yu. D. and Smirnov, Yu. V. and Yurov, V. N.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {35},
    issue = {6},
    pages = {254},
    year = {1982},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_19902.shtml},
}