Show 20 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: parent exact "BEITRAGE ZUR ALGEBRA UND GEOMETRIE = CONTRIBUTIONS TO ALGEBRA AND GEOMETRY" Add to list Journal Article A4 Some notes on generalized quadrangles with a span of regular points Bart De Bruyn (UGent) and S Payne (2007) BEITRAGE ZUR ALGEBRA UND GEOMETRIE = CONTRIBUTIONS TO ALGEBRA AND GEOMETRY. 48. p.49-58