@article{PismaZhETF.21.624,
    title = {Coherent model of $\phi$ bosons},
    author = {Shapiro, I. S.},
    journal = {Письма в ЖЭТФ},
    volume = {21},
    issue = {10},
    pages = {624},
    year = {1975},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22506.shtml},
}