@article{PismaZhETF.26.683,
    title = {Mechanism of "hard" excitation of spin waves in antiferromagnets},
    author = {Lutovinov, V. S. and Savchenko, M. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {26},
    issue = {10},
    pages = {683},
    year = {1977},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20978.shtml},
}