%0 Journal Article %A Lidia Hügel %A Helmut Valenta %T A duality result for almost split sequences %J Colloquium Mathematicum %D 1999 %P 267-292 %V 80 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-80-2-267-292/ %R 10.4064/cm-80-2-267-292 %G en %F 10_4064_cm_80_2_267_292