@article{PismaZhETF.39.315,
    title = {Polarization shift of the levels of a muonic atom},
    author = {Kirzhnits, D. A. and Pen'kov, F. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {39},
    issue = {7},
    pages = {315},
    year = {1984},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_19623.shtml},
}