@article{JETPL.102.549,
    title = {},
    author = {Sargsyan, A. and ,  and ,  and ,  and Sarkisyan, D.},
    journal = {JETP Lett.},
    volume = {102},
    issue = {8},
    pages = {487},
    year = {2015},
    doi = {},
    url = {http://jetpletters.ru/ps/dx/10.7868/S0370274X15200011},
    note = {[Pisma v ZhETF 102, 549 (2015)]}
}