@article{ELA_2003__10__a14,
     author = {Matsuura, Masaya},
     title = {A generalization of {Moore-Penrose} biorthogonal systems},
     journal = {The electronic journal of linear algebra},
     pages = {146--154},
     publisher = {mathdoc},
     volume = {10},
     year = {2003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_2003__10__a14/}
}