@article{PismaZhETF.35.341,
    title = {Crystalline and liquid phases of a pion condensate},
    author = {Dyugaev, A. M.},
    journal = {Письма в ЖЭТФ},
    volume = {35},
    issue = {8},
    pages = {341},
    year = {1982},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_19972.shtml},
}