%0 Journal Article %A F. I. Fedorov %T Deviation of a light beam, refracted in an absorbing (enhancing) isotropic medium, %J Doklady Akademii Nauk %D 1983 %P 1373-1376 %V 271 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1983_271_6_a22/ %G ru %F DAN_1983_271_6_a22