@article{NUMA_1968__12_131854,
     author = {J.F. MAITRE},
     title = {Sur une classe de normes et l'analyse a posteriori d'un syst\`eme lin\'eaire.},
     journal = {Numerische Mathematik},
     pages = {106--110},
     publisher = {mathdoc},
     volume = {12},
     year = {1968},
     zbl = {0184.37502},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1968__12_131854/}
}