%0 Journal Article %A Kramosil, Ivan %T Possibilistic alternatives of elementary notions and relations of the theory of belief functions %J Kybernetika %D 2001 %P [109] %V 37 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_2001__37_2_a0/ %G en %F KYB_2001__37_2_a0