@article{JETPL.107.73, title = {}, author = {Artyukh, A. A. and , and Chernozatonskii, L. A.}, journal = {JETP Lett.}, volume = {107}, issue = {1}, pages = {66}, year = {2018}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X18010137}, note = {[Pisma v ZhETF 107, 73 (2018)]} }