@article{JETPL.106.621,
    title = {},
    author = {,  and Voronin, A. A. and Serebryannikov, E. E. and Zheltikov, A. M.},
    journal = {JETP Lett.},
    volume = {106},
    issue = {10},
    pages = {648},
    year = {2017},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X17220052},
    note = {[Pisma v ZhETF 106, 621 (2017)]}
}