@article{JETPL.103.32, title = {}, author = {Shaginyan, V. R. and , and , and , }, journal = {JETP Lett.}, volume = {103}, issue = {1}, pages = {30}, year = {2016}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X16010069}, note = {[Pisma v ZhETF 103, 32 (2016)]} }