@article{JETPL.107.18,
    title = {},
    author = {Danilov, P. A. and Saraeva, I. N. and Kudryashov, S. I. and ,  and Kuchmizhak, A. A. and Zhizhchenko, A. Yu. and ,  and ,  and Zayarny, D. A. and ,  and , },
    journal = {JETP Lett.},
    volume = {107},
    issue = {1},
    pages = {15},
    year = {2018},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X18010046},
    note = {[Pisma v ZhETF 107, 18 (2018)]}
}