%0 Journal Article %A M. Joswig %T The group of projectivities and colouring of the facets of a~simple polytope %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2001 %P 584-585 %V 56 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_2001_56_3_a10/ %G en %F RM_2001_56_3_a10