%0 Journal Article %A G. Glaeser %A B. Odehnal %A H. Stachel %T A Spatial Version of the Theorem of the Angle of Circumference %J Journal for geometry and graphics %D 2019 %P 147-156 %V 23 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/JGG_2019_23_2_JGG_2019_23_2_a0/ %F JGG_2019_23_2_JGG_2019_23_2_a0