TY - JOUR AU - J. Schadlbauer AU - H.-P. Schr�cker TI - Orthogonality Relations for Tetrahedra in Elliptic and Hyperbolic Space JO - Journal for geometry and graphics PY - 2014 SP - 97 EP - 104 VL - 18 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JGG_2014_18_1_JGG_2014_18_1_a7/ ID - JGG_2014_18_1_JGG_2014_18_1_a7 ER -