@article{PIM_1994_N_S_56_70_a11,
     author = {Dragan S. {\DJ}or{\dj}evi\'c},
     title = {Regular and {T-fredholm} {Elements} in {Banach} {Algebras}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {90 },
     publisher = {mathdoc},
     volume = {_N_S_56},
     number = {70},
     year = {1994},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_1994_N_S_56_70_a11/}
}