@article{PismaZhETF.57.183,
    title = {Nonlinear magnetic resonance in ($CH_3NH_3)_2Mn_{0.5}Cu_{0.5}Cl_4$ crystals},
    author = {Patrin, G. S. and Volkov, N. V. and Fedoseeva, N. V. and Nikolaev, E. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {57},
    issue = {3},
    pages = {183},
    year = {1993},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17759.shtml},
}