TY - JOUR TI - Joint spectra of commuting normal operators on Banach spaces JO - Glasgow mathematical journal PY - 1988 SP - 339 EP - 345 VL - 30 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500007436/ DO - 10.1017/S0017089500007436 ID - 10_1017_S0017089500007436 ER -