%0 Journal Article %A Singh, Surjeet %T Quasi-Injective and Quasi-Projective Modules Over Hereditary Noetherian Prime Rings %J Canadian journal of mathematics %D 1974 %P 1173-1185 %V 26 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1974-110-5/ %R 10.4153/CJM-1974-110-5 %F 10_4153_CJM_1974_110_5