@article{PismaZhETF.8.633,
    title = {Характерная космологическая длина},
    author = {Чернин, А. Д.},
    journal = {Письма в ЖЭТФ},
    volume = {8},
    issue = {11},
    pages = {633},
    year = {1968},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_11657.shtml},
}