@article{JETPL.107.68, title = {}, author = {Dorozhkin, S. I. and Umansky, V. and , and Smet, J. H.}, journal = {JETP Lett.}, volume = {107}, issue = {1}, pages = {61}, year = {2018}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X18010125}, note = {[Pisma v ZhETF 107, 68 (2018)]} }