O dvou speciálních konfiguracích
Obtaining a 3D extension of Pascal theorem for non-degenerated quadrics and its complete configuration with the aid of a computer algebra system.
Odd order flag-transitive affine planes of dimension three over their kernel.
On a class of hyperplanes of the symplectic and Hermitian dual polar spaces.
On a generalization of nets
On a Generalization of the Gallai-Sylvester Theorem.
On a Model of Plane Geometry.
On a special class of Frobenius groups admitting planar partitions.
On collineation groups of translation planes of order .
On configuration of arguesian spaces
On configurations in 3-space without elementary planes and on the number of ordinary planes.
On Desargues geometrization of the characteristic of a skew field.
On elations in semi-transitive planes.
On flag-transitive anomalous -geometries.
On free constructions.
On Groupoids Having a Linear Congruence Class Geometry.
On Havlíček-Tietze configuration in some non-Desarguesian planes
On one construction of all quasifields of order 9
On orthogonality in nets
On ovoids of .