@article{PismaZhETF.54.97,
    title = {Breathers and envelope solitons at a domain wall in a uniaxial  ferromagnet},
    author = {Popkov, A. F.},
    journal = {Письма в ЖЭТФ},
    volume = {54},
    issue = {2},
    pages = {97},
    year = {1991},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18094.shtml},
}