@article{JETPL.96.374,
    title = {},
    author = {Molotkov, S. N.},
    journal = {JETP Lett.},
    volume = {96},
    issue = {5},
    pages = {342},
    year = {2012},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_29933.shtml},
    note = {[Pisma v ZhETF 96, 374 (2012)]}
}