TY - JOUR AU - Chō, Muneo TI - Joint spectra of operators on Banach space JO - Glasgow mathematical journal PY - 1986 SP - 69 EP - 72 VL - 28 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500006352/ DO - 10.1017/S0017089500006352 ID - 10_1017_S0017089500006352 ER -