@article{PismaZhETF.23.673,
    title = {Contribution to the theory of trigger radiation},
    author = {Shapiro, V. D. and Shevchenko, V. I.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {23},
    issue = {12},
    pages = {673},
    year = {1976},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27608.shtml},
}