@article{NUMA_1962__4_131527,
     author = {J. STOER and C. WITZGALL},
     title = {Transformations by {Diagonal} {Matrices} in a {Normed} {Space.}},
     journal = {Numerische Mathematik},
     pages = {158--171},
     publisher = {mathdoc},
     volume = {4},
     year = {1962},
     zbl = {0117.11101},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1962__4_131527/}
}