@article{PismaZhETF.13.704,
    title = {Concerning the Nature of the Cosmological Constant and the Mechanism of Gravitation of Vacuum},
    author = {Gerdov, M. M.},
    journal = {Письма в ЖЭТФ},
    volume = {13},
    issue = {12},
    pages = {704},
    year = {1971},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24379.shtml},
}