@article{PismaZhETF.15.208,
    title = {Nonlinear Modulation of a QuasimonochromatiÓ Packet of Whistlers in the Magnetosphere},
    author = {Istomin, Ya. N. and Karpman, V. I.},
    journal = {ðÉÓØÍÁ × öüôæ},
    volume = {15},
    issue = {4},
    pages = {208},
    year = {1972},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26530.shtml},
}