@article{PismaZhETF.55.373,
    title = {Could the decay $\phi\to\gamma K_s_Ks$ hinder research on CP-invariance violation at $\phi$ factories?},
    author = {Achasov, N. N.},
    journal = {Письма в ЖЭТФ},
    volume = {55},
    issue = {7},
    pages = {373},
    year = {1992},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_19264.shtml},
}