@article{PismaZhETF.3.295,
    title = {Resolution of the Spectrum of an Open Resonator with the Aid of an Echelette Grating},
    author = {Kosarev, E. L.},
    journal = {Письма в ЖЭТФ},
    volume = {3},
    issue = {7},
    pages = {295},
    year = {1966},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24752.shtml},
}