@article{JETPL.109.657,
    title = {},
    author = {Arkhipov, M. V. and Arkhipov, R. M. and ,  and Babushkin, I. and Rosanov, N. N.},
    journal = {JETP Lett.},
    volume = {109},
    issue = {10},
    pages = {634},
    year = {2019},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_33450.shtml},
    note = {[Pisma v ZhETF 109, 657 (2019)]}
}