@article{GDZPPN001167472, title = {On Convexity Properties of the Bauer Field of Values of a Matrix.}, journal = {Numerische Mathematik}, volume = {11}, year = {1968}, pages = {96-105}, zbl = {0182.49103}, url = {http://dml.mathdoc.fr/item/GDZPPN001167472} }
ZENGER, CHR. On Convexity Properties of the Bauer Field of Values of a Matrix.. Numerische Mathematik, Tome 11 (1968) pp. 96-105. http://gdmltest.u-ga.fr/item/GDZPPN001167472/