@article{PismaZhETF.19.539,
    title = {The $\pi$ condensate and data on the scattering of electrons by nuclei},
    author = {Migdal, A. B.},
    journal = {Письма в ЖЭТФ},
    volume = {19},
    issue = {8},
    pages = {539},
    year = {1974},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27079.shtml},
}