@article{CMUC_1979__20_2_a13,
     author = {Mart{\'\i}nez, J. M.},
     title = {A bound for the {Moore-Penrose} pseudoinverse of a matrix},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {357--360},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {1979},
     mrnumber = {539564},
     zbl = {0407.15006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1979__20_2_a13/}
}