TY - JOUR AU - Hiller, Howard Lyn TI - Derived Functors of Torsion JO - Canadian mathematical bulletin PY - 1976 SP - 63 EP - 66 VL - 19 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1976-008-5/ DO - 10.4153/CMB-1976-008-5 ID - 10_4153_CMB_1976_008_5 ER -