Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{MR_1994__42_a5, author = {J. Maroulas and P. Psarrakos}, title = {The numerical {Range} of {Matrix} {Polynomials}}, journal = {M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta} E\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\acute\omega}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\eta} }, pages = {59-83}, publisher = {mathdoc}, volume = {42}, year = {1994}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/MR_1994__42_a5/} }
J. Maroulas; P. Psarrakos. The numerical Range of Matrix Polynomials. Μαθηματική Επιθεώρηση , Tome 42 (1994), p. 59-83. http://geodesic.mathdoc.fr/item/MR_1994__42_a5/