@article{JETPL.110.534,
    title = {},
    author = {,  and Magarill, L. I. and Chaplik, A. V.},
    journal = {JETP Lett.},
    volume = {110},
    issue = {8},
    pages = {540},
    year = {2019},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.1134/S0370274X19200049},
    note = {[Pisma v ZhETF 110, 534 (2019)]}
}