%0 Journal Article %A Frank Plastria %T The Effects of Majority in Fermat-Weber Problems With Attraction and Repulsion in a Pseudometric Space %J Yugoslav journal of operations research %D 1991 %P 141 %V 1 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/YJOR_1991_1_2_a2/ %G en %F YJOR_1991_1_2_a2