@article{PismaZhETF.30.142,
    title = {Double charge exchange of $\pi$ mesons on nuclei with a change in strangeness},
    author = {Biryukov, Yu. A. and Gornov, M. G. and Lapushin, S. V. and Pichugin, A. P. and Ponosov, A. K. and Segeev, F. M.},
    journal = {Письма в ЖЭТФ},
    volume = {30},
    issue = {2},
    pages = {142},
    year = {1979},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20603.shtml},
}