@article{PismaZhETF.12.206,
    title = {Magnetoelectric Effect in $BaCoF_4$},
    author = {Al'shin, B. I. and Astrov, D. N. and Tishchenko, A. V. and Petrov, S. V.},
    journal = {Письма в ЖЭТФ},
    volume = {12},
    issue = {5},
    pages = {206},
    year = {1970},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26301.shtml},
}