TY - JOUR AU - Simmons, H. TI - The use of injective-like structures in model theory JO - Compositio Mathematica PY - 1974 SP - 113 EP - 142 VL - 28 IS - 2 PB - Noordhoff International Publishing UR - http://www.numdam.org/item/CM_1974__28_2_113_0/ LA - en ID - CM_1974__28_2_113_0 ER -