TY - JOUR CY - Providence, RI SP - 345 VL - 55 IS - 2 TI - A commutative Banach algebra which factorizes but has no approximate units SN - 0002-9939 ID - heidok29062 UR - https://archiv.ub.uni-heidelberg.de/volltextserver/29062/ Y1 - 1976/03// EP - 346 AV - public PB - American Mathematical Society A1 - Leinert, Michael JF - Proceedings of the American Mathematical Society ER -