%0 Journal Article %A Hiller, Howard Lyn %T Derived Functors of Torsion %J Canadian mathematical bulletin %D 1976 %P 63-66 %V 19 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1976-008-5/ %R 10.4153/CMB-1976-008-5 %F 10_4153_CMB_1976_008_5