@article{JETPL.108.666, title = {}, author = {Zinoviev, A. N. and Babenko, P. Yu. and , and Shergin, A. P.}, journal = {JETP Lett.}, volume = {108}, issue = {9}, pages = {633}, year = {2018}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.1134/S0370274X18210129}, note = {[Pisma v ZhETF 108, 666 (2018)]} }