TY - JOUR AU - Rigby, J. F. TI - Axioms for Absolute Geometry. III JO - Canadian journal of mathematics PY - 1970 SP - 185 EP - 190 VL - 22 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-022-7/ DO - 10.4153/CJM-1970-022-7 ID - 10_4153_CJM_1970_022_7 ER -