@article{PismaZhETF.45.445,
    title = {Low-temperature relaxation of an anisotropic semiclassical spin: tunnel flipping},
    author = {Ioselevich, A. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {45},
    issue = {9},
    pages = {445},
    year = {1987},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18820.shtml},
}