@article{JETPL.108.71,
    title = {},
    author = {,  and ,  and Tikhonov, E. S. and ,  and ,  and ,  and ,  and ,  and Khrapai, V. S.},
    journal = {JETP Lett.},
    volume = {108},
    issue = {1},
    pages = {71},
    year = {2018},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.1134/S0370274X18130131},
    note = {[Pisma v ZhETF 108, 71 (2018)]}
}