@article{PismaZhETF.22.503,
    title = {Metastable states of two-dimensional isotropic ferromagnets},
    author = {Belavin, A. A. and Polyakov, A. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {22},
    issue = {10},
    pages = {503},
    year = {1975},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23383.shtml},
}