@article{CMUC_1975__16_1_a1,
     author = {Groetsch, Charles W.},
     title = {A product integral representation of the generalized inverse},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {13--20},
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {1975},
     mrnumber = {0390815},
     zbl = {0298.47007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1975__16_1_a1/}
}