Middle Infrared and THz Sources at AREAL.Published in:Armenian Journal of Physics, 2018, v. 11, n. 3, p. 111By:Sahakyan, V. V.;Sargsyan, A. A.;Zanyan, G. S.;Vardanyan, T. S.;Grigoryan, B. A.;Tsakanov, V. M.Publication type:Article