@article{JETPL.104.258,
    title = {},
    author = {Bykov, A. A. and Strygin, I. S. and Goran, A. V. and Rodyakina, E. E. and ,  and Vitkalov, S. A.},
    journal = {JETP Lett.},
    volume = {104},
    issue = {4},
    pages = {257},
    year = {2016},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X16160098},
    note = {[Pisma v ZhETF 104, 258 (2016)]}
}