@article{PismaZhETF.2.37,
    title = {Laser with Radiation Diagram of Diffraction Width},
    author = {Mikaelyan, A. L. and Korovitsyn, A. V. and Naumova, L. V.},
    journal = {Письма в ЖЭТФ},
    volume = {2},
    issue = {1},
    pages = {37},
    year = {1965},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24452.shtml},
}