@article{JETPL.98.439, title = {}, author = {Ashitkov, S. I. and Komarov, P. S. and , and , and Fortov, V. E.}, journal = {JETP Lett.}, volume = {98}, issue = {7}, pages = {384}, year = {2013}, doi = {}, url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X13190065}, note = {[Pisma v ZhETF 98, 439 (2013)]} }