@article{JETPL.96.59,
    title = {},
    author = {,  and ,  and Lukoyanov, A. V. and , },
    journal = {JETP Lett.},
    volume = {96},
    issue = {1},
    pages = {56},
    year = {2012},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_29861.shtml},
    note = {[Pisma v ZhETF 96, 59 (2012)]}
}