@article{PismaZhETF.7.61,
    title = {Correlation Properties of Gamma Beams in the X-ray Band},
    author = {Kolpakov, A. V. and Kuz'min, R. N.},
    journal = {Письма в ЖЭТФ},
    volume = {7},
    issue = {2},
    pages = {61},
    year = {1968},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25576.shtml},
}