@article{PismaZhETF.25.516,
    title = {Nonlinear localized magnetization wave of a ferromagnet as a bound state of a large number of magnons},
    author = {Kosevich, A. M. and Ivanov, B. A. and Kovalev, A. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {25},
    issue = {11},
    pages = {516},
    year = {1977},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21475.shtml},
}