TY - JOUR AU - Julia M. Nowlin Brown TI - Homologies in Collineation Groups of Finite Projective Planes. I. JO - Mathematische Zeitschrift PY - 1972 SP - 133 EP - 140 VL - 124 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1972__124_171664/ ID - MZ_1972__124_171664 ER -