Hyperbolic lines in generalized polygons. J. van Bon; H. Cuypers; H. Maldeghem — 1996 Forum mathematicum
A universal construction for projective Hjelmslev planes of level n G. Hanssens; H. Van Maldeghem — 1989 Compositio Mathematica
Orthogonal, symplectic and unitary polar spaces sub-weakly embedded in projective space J. A. Thas; H. Van Maldeghem — 1996 Compositio Mathematica
On flocks of infinite quadratic cones. De Clerck, F.; Van Maldeghem, H. — 1994 Bulletin of the Belgian Mathematical Society - Simon Stevin
Affine line systems in finite-dimensional vector spaces. Löwen, R.; Steinke, G. F.; Van Maldeghem, H. — 2003 Advances in Geometry