@article{PismaZhETF.57.543,
    title = {Mossbauer study of spin-flip phase transition on the $Fe_3BO_6$ surface},
    author = {Kamzin, A. S. and Grigor'ev, L. A.},
    journal = {Письма в ЖЭТФ},
    volume = {57},
    issue = {9},
    pages = {543},
    year = {1993},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17834.shtml},
}