@article{JETPL.107.507, title = {}, author = {Frolov, A. V. and Orlov, A. P. and Grigoriev, P. D. and Zverev, V. N. and Sinchenko, A. A. and Monceau, P.}, journal = {JETP Lett.}, volume = {107}, issue = {8}, pages = {488}, year = {2018}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X18080088}, note = {[Pisma v ZhETF 107, 507 (2018)]} }