@article{PismaZhETF.11.537,
    title = {Metastabile "Overturned" State of Ferromagnet as a Source of Amplification of Electromagnetic or Acoustic Waves},
    author = {Kosevich, A. M.},
    journal = {Письма в ЖЭТФ},
    volume = {11},
    issue = {11},
    pages = {537},
    year = {1970},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26188.shtml},
}