@article{PismaZhETF.8.145,
    title = {Line Shape of Nonlinear Ferromagnetic Resonance of Second Order},
    author = {Deryugin, I. A. and Zaporozhets, V. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {8},
    issue = {3},
    pages = {145},
    year = {1968},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25961.shtml},
}