@article{10_4064_sm168_3_1,
     author = {J. J. Koliha and V. Rako\v{c}evi\'c},
     title = {Differentiability of the $g${-Drazin} inverse},
     journal = {Studia Mathematica},
     pages = {193--201},
     publisher = {mathdoc},
     volume = {168},
     number = {3},
     year = {2005},
     doi = {10.4064/sm168-3-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm168-3-1/}
}