@article{PismaZhETF.57.606,
    title = {New restrictions on spatial topology of the universe from microwave background temperature fluctuations},
    author = {Starobinsky, A. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {57},
    issue = {10},
    pages = {606},
    year = {1993},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_4915.shtml},
}