Ulrich Dempwolff William M. Kantor Symmetric Designs from the G<sub>2</sub>(q) Generalized Hexagons. 410-415 2002 98 J. Comb. Theory, Ser. A 2 http://dx.doi.org/10.1006/jcta.2001.3250 db/journals/jct/jcta98.html#DempwolffK02