TY - JOUR AU - Kerner Otto TI - Universal exact sequences for torsion theories JO - Banach Center Publications PY - 1990 SP - 317 EP - 326 VL - 26 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/-26-1-317-326/ DO - 10.4064/-26-1-317-326 LA - en ID - 10_4064__26_1_317_326 ER -