%0 Journal Article %A L. A. Beklaryan %T A~criterion connected with the structure of the fixed-point set for the existence of a~projectively invariant measure for groups of orientation-preserving homeomorphisms of $\mathbb R$ %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1996 %P 539-540 %V 51 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1996_51_3_a5/ %G en %F RM_1996_51_3_a5