@article{PismaZhETF.9.634,
    title = {Theory of Intermediate States of an Antiferromagnet During a First-order Phase Transition in an External Magnetic Field},
    author = {Bar'yakhtar, V. G. and Borovik, A. E. and Popov, V. A.},
    journal = {Письма в ЖЭТФ},
    volume = {9},
    issue = {11},
    pages = {634},
    year = {1969},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25416.shtml},
}