%0 Journal Article %A Helmut Lenzing %A Idun Reiten %T Additive functions for quivers with relations %J Colloquium Mathematicum %D 1999 %P 85-103 %V 82 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-82-1-85-103/ %R 10.4064/cm-82-1-85-103 %G en %F 10_4064_cm_82_1_85_103