@article{JETPL.97.82,
    title = {},
    author = {Makarov, G. N. and Petin, A. N.},
    journal = {JETP Lett.},
    volume = {97},
    issue = {2},
    pages = {76},
    year = {2013},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X13020033},
    note = {[Pisma v ZhETF 97, 82 (2013)]}
}