Collineations of Subiaco and Cherowitzo hyperovals. O'Keefe, Christine M.; Thas, J.A. — 1996 Bulletin of the Belgian Mathematical Society - Simon Stevin

A unified construction of finite geometries associated with $q$-clans in characteristic 2. Cherowitzo, William E.; O'Keefe, Christine M.; Penttila, Tim — 2003 Advances in Geometry