@article{JETPL.111.475,
    title = {},
    author = {,  and Vlasenko, V. A. and ,  and ,  and ,  and Pervakov, K. S.},
    journal = {JETP Lett.},
    volume = {111},
    issue = {7},
    pages = {403},
    year = {2020},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.31857/S0370274X20070097},
    note = {[Pisma v ZhETF 111, 475 (2020)]}
}