%0 Journal Article %A Pradera, Ana %A Trillas, Enric %T Aggregation operators from the ancient NC and EM point of view %J Kybernetika %D 2006 %P 243-260 %V 42 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_2006__42_3_a0/ %G en %F KYB_2006__42_3_a0