@article{PismaZhETF.20.571,
    title = {Singularities of the electronic spectrum of compounds with $\beta-W$ structure},
    author = {Gor'kov, L. P.},
    journal = {Письма в ЖЭТФ},
    volume = {20},
    issue = {8},
    pages = {571},
    year = {1974},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27344.shtml},
}