@article{PismaZhETF.20.281,
    title = {Dynamic model of amplitude with spin flip},
    author = {Levintov, I. I.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {20},
    issue = {4},
    pages = {281},
    year = {1974},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27250.shtml},
}