O dvou speciálních konfiguracích ( 12 4 , 16 3 ) Václav Metelka (1985) Časopis pro pěstování matematiky
On a class of hyperplanes of the symplectic and Hermitian dual polar spaces. De Bruyn, Bart (2009) The Electronic Journal of Combinatorics [electronic only]
On a Generalization of the Gallai-Sylvester Theorem. Y.S. Kupitz (1992) Discrete & computational geometry
On the Group of Transformations of Constructible Euclidean Planes with Preserve a Single Distance. Bijan Farrahi (1977) Jahresbericht der Deutschen Mathematiker-Vereinigung
On the incidence structures of polar spaces and quadrics. Ferrara Dentice, Eva (2002) Advances in Geometry
Orthogonal, symplectic and unitary polar spaces sub-weakly embedded in projective space J. A. Thas, H. Van Maldeghem (1996) Compositio Mathematica