@article{JETPL.102.817, title = {}, author = {, and , and , and , and Grum-Grzhimailo, A. N. and Pikuz, S. A.}, journal = {JETP Lett.}, volume = {102}, issue = {11}, pages = {707}, year = {2015}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X15230034}, note = {[Pisma v ZhETF 102, 817 (2015)]} }