@article{JETPL.110.614,
    title = {},
    author = {Knyazev, Yu. V. and Chumakov, A. I. and ,  and ,  and ,  and ,  and ,  and Balaev, D. A.},
    journal = {JETP Lett.},
    volume = {110},
    issue = {9},
    pages = {613},
    year = {2019},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.1134/S0370274X19210082},
    note = {[Pisma v ZhETF 110, 614 (2019)]}
}