@article{JETPL.109.258,
    title = {},
    author = {Zinovieva, A. F. and Zinovyev, V. A. and Stepina, N. P. and Katsyuba, A. V. and Dvurechenskii, A. V. and ,  and Kulik, L. V. and ,  and ,  and ,  and , },
    journal = {JETP Lett.},
    volume = {109},
    issue = {4},
    pages = {270},
    year = {2019},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.1134/S0370274X1904012X},
    note = {[Pisma v ZhETF 109, 258 (2019)]}
}