@article{JETPL.104.96, title = {}, author = {Brazhkin, V. V. and , and , }, journal = {JETP Lett.}, volume = {104}, issue = {2}, pages = {99}, year = {2016}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X1614006X}, note = {[Pisma v ZhETF 104, 96 (2016)]} }