@article{GDZPPN001164163, title = {Transformations by Diagonal Matrices in a Normed Space.}, journal = {Numerische Mathematik}, volume = {4}, year = {1962}, pages = {158-171}, zbl = {0117.11101}, url = {http://dml.mathdoc.fr/item/GDZPPN001164163} }
STOER, J.; WITZGALL, C. Transformations by Diagonal Matrices in a Normed Space.. Numerische Mathematik, Tome 4 (1962) pp. 158-171. http://gdmltest.u-ga.fr/item/GDZPPN001164163/