Point-line characterizations of Lie geometries. Kasikova, Anna, Shult, Ernest (2002) Advances in Geometry
Pseudo-ovals, elation Laguerre planes, and translation generalized quadrangles. Joswig, Michael (1999) Beiträge zur Algebra und Geometrie
Punkt-Linien-Superoskulanten-Kegelschnitte U. STERZ, K. DRECHSLER (1977) Beiträge zur Algebra und Geometrie = Contributions to algebra and geometry