@article{PismaZhETF.57.601,
    title = {Topologically nontrivial nature of the universe in connection with the anisotropy of the background radiation},
    author = {Sokolov, I. Yu.},
    journal = {Письма в ЖЭТФ},
    volume = {57},
    issue = {10},
    pages = {601},
    year = {1993},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17846.shtml},
}