@article{PismaZhETF.21.312,
    title = {Structure of developed pion condensate},
    author = {Sorokin, G. A.},
    journal = {Письма в ЖЭТФ},
    volume = {21},
    issue = {5},
    pages = {312},
    year = {1975},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22315.shtml},
}