@article{PismaZhETF.25.302,
    title = {Spontaneous breaking of gauge symmetry in a homogeneous isotropic universe of the open type},
    author = {Grib, A. A. and Mostepanenko, V. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {25},
    issue = {6},
    pages = {302},
    year = {1977},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21158.shtml},
}