Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{NUMA_1968__12_131859, author = {J. STOER}, title = {Lower {Bounds} of {Matrices.}}, journal = {Numerische Mathematik}, pages = {146--158}, publisher = {mathdoc}, volume = {12}, year = {1968}, zbl = {0174.31902}, url = {http://geodesic.mathdoc.fr/item/NUMA_1968__12_131859/} }
J. STOER. Lower Bounds of Matrices.. Numerische Mathematik, Tome 12 (1968), pp. 146-158. http://geodesic.mathdoc.fr/item/NUMA_1968__12_131859/