TY - JOUR AU - Dixon, P. G. TI - Unbounded approximate identities in normed algebras JO - Glasgow mathematical journal PY - 1992 SP - 189 EP - 192 VL - 34 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500008703/ DO - 10.1017/S0017089500008703 ID - 10_1017_S0017089500008703 ER -