@article{PismaZhETF.35.398,
    title = {Absence of particle creation in a hot Friedmann universe},
    author = {Linde, A. D.},
    journal = {Письма в ЖЭТФ},
    volume = {35},
    issue = {9},
    pages = {398},
    year = {1982},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20032.shtml},
}