%0 Journal Article %A Sagara, Nobusumi %T An existence result on partitioning of a measurable space: Pareto optimality and core %J Kybernetika %D 2006 %P 475-481 %V 42 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_2006__42_4_a6/ %G en %F KYB_2006__42_4_a6