%0 Journal Article %A Richard Becker %T Cones contained in a Banach space and factorization of positive operators defined on its dual with values in a space L1. %J Mathematische Zeitschrift %D 1994 %P 257-264 %V 216 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1994__216_4_174650/ %F MZ_1994__216_4_174650