TY  - JOUR
AU  - Michael Walker
TI  - On the Structure of Finite Collineation Groups Containing Symmetries of Generalized Quadrangles.
JO  - Inventiones mathematicae
PY  - 1977
SP  - 245
EP  - 266
VL  - 40
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM_1977__40_142480/
ID  - IM_1977__40_142480
ER  -