%0 Journal Article %A Mareš, Milan %T Addition of rational fuzzy quantities: Convolutive approach %J Kybernetika %D 1989 %P 1-11 %V 25 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1989__25_1_a0/ %G en %F KYB_1989__25_1_a0