@article{JETPL.101.671,
    title = {},
    author = {,  and Ashitkov, S. I. and ,  and Sitnikov, D. S. and ,  and ,  and ,  and ,  and Fortov, V. E.},
    journal = {JETP Lett.},
    volume = {101},
    issue = {9},
    pages = {598},
    year = {2015},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X15090039},
    note = {[Pisma v ZhETF 101, 671 (2015)]}
}