%0 Journal Article %A N. G. Basov %A V. S. Letokhov %T Change of light pulse shape upon non-linear amplification %J Doklady Akademii Nauk %D 1966 %P 73-76 %V 167 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1966_167_1_a18/ %G ru %F DAN_1966_167_1_a18