@article{PismaZhETF.18.138,
    title = {Mobility of polaron with strong coupling},
    author = {Volovik, G. E. and Mel'nikov, V. I. and Edel'shtein, V. M.},
    journal = {Письма в ЖЭТФ},
    volume = {18},
    issue = {2},
    pages = {138},
    year = {1973},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23902.shtml},
}