%0 Journal Article %A Harman, Blahoslav %T Sum and product of the modified real fuzzy numbers %J Kybernetika %D 1992 %P 37-40 %V 28 %N Suppl %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1992__28_Suppl_a7/ %G en %F KYB_1992__28_Suppl_a7