@article{NUMA_1964__6_131615,
     author = {J. STOER},
     title = {On the {Characterization} of {Least} {Upper} {Bound} {Norms} in {Matrix} {Space.}},
     journal = {Numerische Mathematik},
     pages = {302--314},
     publisher = {mathdoc},
     volume = {6},
     year = {1964},
     zbl = {0126.32101},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1964__6_131615/}
}