On Baer Subspaces of Finite Projective Spaces.
On Difference Matrices, Resolvable Transversal Designs and Generalized Hadamard Matrices.
On finite projective planes in Lenz-Barlotti class at least I.3.
On Incidence Matrices of Finite Projective and Affine Spaces.
On Involutorial Elations of Projective Planes.
On one construction of all quasifields of order 9
On projective planes of order 20
On Projective Planes of Order Twelve and Twenty.
On rank 4 projective planes.
On rank 5 projective planes.
On some hyperbolic planes from finite projective planes.
On swell-colored complete graphs.
On the Collineation Groups of Derived Semifield Planes.
On the functional equation ... (Short Communication).
On the non-existence of certain hyperovals in dual André planes of order 2.
On the Non-Existence of Certain M.D.S. Codes and Projective Planes.
On the Structure of Finite Collineation Groups Containing Symmetries of Generalized Quadrangles.
On the theorems of Drake and Lenz.
Partial Geometries in Finite Affine Spaces.
Partial Spreads, Packings and Hermitian Manifolds in PG (3, q).