@article{JETPL.109.809,
    title = {},
    author = {Shkitov, D. A. and Potylitsyn, A. P. and Naumenko, G. A. and Shevelev, M. V. and ,  and ,  and , },
    journal = {JETP Lett.},
    volume = {109},
    issue = {12},
    pages = {771},
    year = {2019},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.1134/S0370274X19120014},
    note = {[Pisma v ZhETF 109, 809 (2019)]}
}