@article{PismaZhETF.65.454,
    title = {Negative ions in liquid helium: existence of new bound states},
    author = {Sekatskii, S. K.},
    journal = {Письма в ЖЭТФ},
    volume = {65},
    issue = {6},
    pages = {454},
    year = {1997},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_15124.shtml},
}