TY  - JOUR
AU  - Au-Yeung, Yik-Hoi
AU  - Sing, Fuk-Yum
TI  - A remark on the generalized numerical range of a normal matrix
JO  - Glasgow mathematical journal
PY  - 1977
SP  - 179
EP  - 180
VL  - 18
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003244/
DO  - 10.1017/S0017089500003244
ID  - 10_1017_S0017089500003244
ER  -