%0 Journal Article %A Lietard, Ludovic %A Rocacher, Daniel %T Conditions with aggregates evaluated using gradual numbers %J Control and Cybernetics %D 2009 %P 395-417 %V 38 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CC_2009_38_2_a5/ %G en %F CC_2009_38_2_a5