TY - JOUR TI - On Ring Properties of Injective Hulls JO - Canadian mathematical bulletin PY - 1975 SP - 233 EP - 239 VL - 18 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1975-045-0/ DO - 10.4153/CMB-1975-045-0 ID - 10_4153_CMB_1975_045_0 ER -