@article{JETPL.109.43,
    title = {},
    author = {Bunkov, Yu. M. and ,  and Safin, T. R. and ,  and Tagirov, M. S.},
    journal = {JETP Lett.},
    volume = {109},
    issue = {1},
    pages = {40},
    year = {2019},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.1134/S0370274X19010089},
    note = {[Pisma v ZhETF 109, 43 (2019)]}
}