Baer involutions and polarities in Moufang planes of characteristic two
Norbert Knarr, Markus Stroppel · Advances in Geometry · 2012
Abstract We classify those polarities of Moufang planes in characteristic two that have at least one absolute point. Along the way, we determine the Baer involutions of the planes in question and show that the corresponding Baer subplanes will be pappian or non-desarguesian Moufang planes.