TY - JOUR AU - Thomas Weibull TI - A natural map from the ext Künneth sequence to the Tor one. JO - Mathematica Scandinavica PY - 1983 SP - 203 EP - 206 VL - 53 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MS2_1983__53_166865/ ID - MS2_1983__53_166865 ER -