@article{PismaZhETF.7.493,
    title = {Critical Aperture in Plasma Diagnostics by the Scattering Method},
    author = {Pyatnitskii, L. N. and Khaustovich, G. P. and Korobkin, V. V.},
    journal = {Письма в ЖЭТФ},
    volume = {7},
    issue = {12},
    pages = {493},
    year = {1968},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25827.shtml},
}