@article{PismaZhETF.6.823,
    title = {Difference Between the Spectra of $K^0_{\mu 3}$ and $\bar{K}^0_{\mu 3}$ Decays},
    author = {Okun', L. B.},
    journal = {Письма в ЖЭТФ},
    volume = {6},
    issue = {8},
    pages = {823},
    year = {1967},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25501.shtml},
}