@article{JETPL.103.337,
    title = {},
    author = {,  and Mavrin, A. A.},
    journal = {JETP Lett.},
    volume = {103},
    issue = {5},
    pages = {298},
    year = {2016},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X16050027},
    note = {[Pisma v ZhETF 103, 337 (2016)]}
}