%0 Journal Article %A Snežana Č. Živković-Zlatanović %T An Introduction into Fredholm Theory and Generalized Drazin-Riesz Invertible Operators %J Zbornik radova %D 2022 %P 113 %V 20 %N 28 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZR_2022_20_28_a3/ %G en %F ZR_2022_20_28_a3