@article{JETPL.104.734, title = {}, author = {Dorozhkin, S. I. and Umansky, V. and , and Smet, J. H.}, journal = {JETP Lett.}, volume = {104}, issue = {10}, pages = {721}, year = {2016}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X16220124}, note = {[Pisma v ZhETF 104, 734 (2016)]} }