@article{PismaZhETF.23.46,
    title = {The expected properties of the $\eta'_c$ mesons},
    author = {Okun', L. B. and Khodzhamiryan, A. Yu.},
    journal = {Письма в ЖЭТФ},
    volume = {23},
    issue = {1},
    pages = {46},
    year = {1976},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27420.shtml},
}