1. On a combinatorial generalization of 27 lines associated with a cubic surface;Ahrens;J. Austral. Math. Soc.,1969
2. Finite Geometries;Dembowski,1968
3. A characterization theorem for the generalized quadrangle T2∗(O) of order (s, s + 2);De Soete;Ars. Combin.,1984
4. Veralgemeende Vierhoeken van de Orden (s, s + 2) en (s, s);De Soete,1984
5. Affine generalized quadrilaterals;Hall,1971