@article{JETPL.107.803,
    title = {},
    author = {Shvetsov, O. O. and ,  and Timonina, A. V. and Kolesnikov, N. N. and Deviatov, E. V.},
    journal = {JETP Lett.},
    volume = {107},
    issue = {12},
    pages = {774},
    year = {2018},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X18120081},
    note = {[Pisma v ZhETF 107, 803 (2018)]}
}