@article{JETPL.107.54,
    title = {},
    author = {,  and ,  and Bol?ginov, V. V. and Egorov, S. V. and Chichkov, V. and ,  and ,  and ,  and ,  and , },
    journal = {JETP Lett.},
    volume = {107},
    issue = {1},
    pages = {48},
    year = {2018},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X18010101},
    note = {[Pisma v ZhETF 107, 54 (2018)]}
}