@article{PismaZhETF.18.61,
    title = {Two-stage excitation of nuclei to obtain stimulated gamma-quantum emission},
    author = {Gol'danskii, V. I. and Kagan, Yu. and Namiot, V. A.},
    journal = {Письма в ЖЭТФ},
    volume = {18},
    issue = {1},
    pages = {61},
    year = {1973},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23543.shtml},
}