@article{PismaZhETF.12.38,
    title = {Importance of Measuring the Magnetic Anisotropy in Thulium},
    author = {Irkhin, Yu. P.},
    journal = {Письма в ЖЭТФ},
    volume = {12},
    issue = {1},
    pages = {38},
    year = {1970},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26222.shtml},
}