TY - JOUR AU - Michael Walker TI - The Collineation Groups of Derived Translation Planes. II. JO - Mathematische Zeitschrift PY - 1976 SP - 1 EP - 6 VL - 148 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1976__148_172344/ ID - MZ_1976__148_172344 ER -