%0 Journal Article %A Simmons, H. %T The use of injective-like structures in model theory %J Compositio Mathematica %D 1974 %P 113-142 %V 28 %N 2 %I Noordhoff International Publishing %U http://www.numdam.org/item/CM_1974__28_2_113_0/ %G en %F CM_1974__28_2_113_0