TY - JOUR AU - Macbeath, A. M. TI - The Classification of Non-Euclidean Plane Crystallographic Groups JO - Canadian journal of mathematics PY - 1967 SP - 1192 EP - 1205 VL - 19 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-108-5/ DO - 10.4153/CJM-1967-108-5 ID - 10_4153_CJM_1967_108_5 ER -