@article{PismaZhETF.19.755,
    title = {Determination of the critical value of the adiabaticity parameter for electrons moving near the midplane of a magnetic bottle},
    author = {Il'ina, A. N. and Il'in, V. D.},
    journal = {Письма в ЖЭТФ},
    volume = {19},
    issue = {12},
    pages = {755},
    year = {1974},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27140.shtml},
}