Статья 3066 P.O. Vardevanyan V.L. Elbakyan M.A. Shahinyan Minasyants M.V. Parsadanyan M.A. Sahahakyan N.S. Journal of Applied Spectroscopy v. 81, N6 1060-1063 2015 http://www.springer.com/physics/atomic,+molecular,+optical+%26+plasma+physics/j…