@article{PismaZhETF.10.509,
    title = {Electric Drift of Positrons In Helium.},
    author = {Rodionov, S. N. and Sannikov, B. P. and Solodov, E. P.},
    journal = {Письма в ЖЭТФ},
    volume = {10},
    issue = {11},
    pages = {509},
    year = {1969},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25769.shtml},
}