@article{JETPL.105.637,
    title = {},
    author = {Kukushkin, V. I. and ,  and Solov?ev, V. V. and Kukushkin, I. V.},
    journal = {JETP Lett.},
    volume = {105},
    issue = {10},
    pages = {677},
    year = {2017},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X17100125},
    note = {[Pisma v ZhETF 105, 637 (2017)]}
}