TY - JOUR AU - Donald Z. Spicer TI - A commutativity theorem for Banach algebras JO - Colloquium Mathematicum PY - 1973 SP - 107 EP - 108 VL - 27 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-27-1-107-108/ DO - 10.4064/cm-27-1-107-108 LA - en ID - 10_4064_cm_27_1_107_108 ER -