@article{PismaZhETF.5.220,
    title = {Laser with Neodymium-activated $\alpha$-Gagarinite},
    author = {Bagdasarov, Kh. S. and Kaminskii, A. A. and Lapsker, Ya. E. and Sobolev, B. P.},
    journal = {Письма в ЖЭТФ},
    volume = {5},
    issue = {7},
    pages = {220},
    year = {1967},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25147.shtml},
}