@article{JETPL.102.626,
    title = {},
    author = {,  and ,  and Martyushev, L. M.},
    journal = {JETP Lett.},
    volume = {102},
    issue = {8},
    pages = {557},
    year = {2015},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X15200151},
    note = {[Pisma v ZhETF 102, 626 (2015)]}
}