TY - JOUR AU - Ascher Wagner TI - Collineations of Finite Projective Spaces as Permutations on the Sets of Dual Subspaces. JO - Mathematische Zeitschrift PY - 1969 SP - 249 EP - 254 VL - 111 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1969__111_171201/ ID - MZ_1969__111_171201 ER -