%0 Journal Article %A G. A. Arutyunyan %T Formation of spectral lines in the medium of finite optical thickness with %J Doklady Akademii Nauk %D 1991 %P 1073-1077 %V 320 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1991_320_5_a8/ %G ru %F DAN_1991_320_5_a8