TY - JOUR AU - Lüneburg, Heinz TI - Characterizations of the Generalized Hughes Planes JO - Canadian journal of mathematics PY - 1976 SP - 376 EP - 402 VL - 28 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1976-039-7/ DO - 10.4153/CJM-1976-039-7 ID - 10_4153_CJM_1976_039_7 ER -