@article{PismaZhETF.23.320,
    title = {Instability in parallel pumping in almost isotropic ferromagnets},
    author = {Pokrovskii, L. V. and Fomichev, S. V.},
    journal = {Письма в ЖЭТФ},
    volume = {23},
    issue = {6},
    pages = {320},
    year = {1976},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27512.shtml},
}