@article{JETPL.106.84,
    title = {},
    author = {Gainutdinov, R. V. and ,  and Petrzhik, E. A. and ,  and Volk, T. R.},
    journal = {JETP Lett.},
    volume = {106},
    issue = {2},
    pages = {97},
    year = {2017},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X17140065},
    note = {[Pisma v ZhETF 106, 84 (2017)]}
}