@article{PismaZhETF.28.308,
    title = {Observation of a long-lived autoionization state in the spectrum of the gadolinium atom},
    author = {Bekov, G. I. and Letokhov, V. S. and Matveev, O. I. and Wishin, V. I.},
    journal = {Письма в ЖЭТФ},
    volume = {28},
    issue = {5},
    pages = {308},
    year = {1978},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24148.shtml},
}