@article{PismaZhETF.39.402,
    title = {First-order magnetic phase transitions and metamagnetism of quantum origin},
    author = {Nagaev, E. L.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {39},
    issue = {9},
    pages = {402},
    year = {1984},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_19652.shtml},
}