%0 Journal Article %A A. K. Chernyshov %A A. O. Allin %T Conversion Gaussian mode in the axial-symmetric light beam of different types with a ring interferometer %J Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki %D 2007 %P 128-134 %V 149 %N 1 %U http://geodesic.mathdoc.fr/item/UZKU_2007_149_1_a19/ %G ru %F UZKU_2007_149_1_a19