TY - JOUR AU - Albert, A.A. TI - On the collineation groups of certain non-Desarguesian planes JO - Portugaliae mathematica PY - 1959 SP - 207 EP - 224 VL - 18 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PORMA_1959__18_4_114828/ LA - en ID - PORMA_1959__18_4_114828 ER -