TY - JOUR AU - G. Purdy TI - Repeated Angles in E4 . JO - Discrete & computational geometry PY - 1988 SP - 73 EP - 76 VL - 3 IS - 1-2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DCG_1988__3_1-2_131036/ ID - DCG_1988__3_1-2_131036 ER -