%0 Journal Article %A V. L. Levin %T Lipschitz pre-orders and Lipschitz utility functions %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1984 %P 217-218 %V 39 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1984_39_6_a9/ %G en %F RM_1984_39_6_a9