@article{JETPL.108.189, title = {}, author = {Dzebisashvili, D. M. and , }, journal = {JETP Lett.}, volume = {108}, issue = {3}, pages = {189}, year = {2018}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.1134/S0370274X18150080}, note = {[Pisma v ZhETF 108, 189 (2018)]} }