@article{JETPL.107.389,
    title = {},
    author = {Gavryushkin, P. N. and ,  and Popov, Z. I. and ,  and Inerbaev, T. M. and Litasov, K. D.},
    journal = {JETP Lett.},
    volume = {107},
    issue = {6},
    pages = {379},
    year = {2018},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X18060103},
    note = {[Pisma v ZhETF 107, 389 (2018)]}
}