@article{PismaZhETF.30.704,
    title = {Effect of conduction electrons on exchange interactions in single crystals of the $Mn_xFe_{3-x}O_4$ system},
    author = {Babkin, E. V. and Mushailov, E. S.},
    journal = {Письма в ЖЭТФ},
    volume = {30},
    issue = {11},
    pages = {704},
    year = {1979},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20734.shtml},
}