@article{JETPL.106.555,
    title = {},
    author = {Zhukavin, R. Kh. and Kovalevsky, K. A. and ,  and Choporova, Yu. Yu. and Gerasimov, V. V. and Tsyplenkov, V. V. and Knyazev, B. A. and Abrosimov, N. V. and ,  and Shastin, V. N. and ,  and De?mann, N. and ,  and ,  and ,  and , },
    journal = {JETP Lett.},
    volume = {106},
    issue = {9},
    pages = {571},
    year = {2017},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X17210044},
    note = {[Pisma v ZhETF 106, 555 (2017)]}
}