%0 Journal Article %A G. Yu. Panina %T Pointed spherical tilings and hyperbolic virtual polytopes %J Zapiski Nauchnykh Seminarov POMI %D 2009 %P 157-171 %V 372 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2009_372_a15/ %G en %F ZNSL_2009_372_a15