@article{PismaZhETF.24.60,
    title = {Quantum magnetization jumps in magnets with easy-plane anisotropy},
    author = {Rozenfel'd, E. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {24},
    issue = {2},
    pages = {60},
    year = {1976},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27654.shtml},
}