%0 Journal Article %A Nándor Simányi %T The K-property of N billiard balls II. Computation of neutral linear spaces. %J Inventiones mathematicae %D 1992 %P 151-172 %V 110 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1992__110_2_144047/ %F IM_1992__110_2_144047