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@article{NUMA_1968__12_131853, author = {CHR. ZENGER}, title = {On {Convexity} {Properties} of the {Bauer} {Field} of {Values} of a {Matrix.}}, journal = {Numerische Mathematik}, pages = {96--105}, publisher = {mathdoc}, volume = {12}, year = {1968}, zbl = {0182.49103}, url = {http://geodesic.mathdoc.fr/item/NUMA_1968__12_131853/} }
CHR. ZENGER. On Convexity Properties of the Bauer Field of Values of a Matrix.. Numerische Mathematik, Tome 12 (1968), pp. 96-105. http://geodesic.mathdoc.fr/item/NUMA_1968__12_131853/