%0 Journal Article %A V. K. Konyukhov %A L. A. Kulevskii %A A. M. Prokhorov %T Investigation of optical oscillator on ruby at liquid-nitrogen temperature %J Doklady Akademii Nauk %D 1963 %P 571-572 %V 149 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1963_149_3_a22/ %G ru %F DAN_1963_149_3_a22