%0 Journal Article %A A. A. Vertii %A S. P. Gavrilov %A S. I. Tarapov %A V. P. Shestopalov %T Inversionless amplification of information signal in passive nonlinear quasi-optical resonator %J Doklady Akademii Nauk %D 1992 %P 270-273 %V 323 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1992_323_2_a17/ %G ru %F DAN_1992_323_2_a17