@article{JETPL.108.549, title = {}, author = {Filatov, S. V. and , and , and Levchenko, A. A.}, journal = {JETP Lett.}, volume = {108}, issue = {8}, pages = {519}, year = {2018}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.1134/S0370274X18200055}, note = {[Pisma v ZhETF 108, 549 (2018)]} }