1. Projective embedding of fibered groups and the Suzuki groups;Combinatorics '90 - Recent Trends and Applications, Proceedings of the Conference on Corn binatorics, Gaeta;1992
2. Kernels of fibered groups with operators;Archiv der Mathematik;1987-04
3. Near-Rings Associated with Covered Groups;Near-Rings and Near-Fields, Proceedings of a Conference held at the University of Tübingen, F.R.G.;1987
4. Right S-n-Partitions of a Group and Representation of Geometrical Spaces of Type “n-Steiner”;Combinatorics '84, Proceedings of the International Conference on Finite Geometries and Combinatorial Structures;1986
5. On Finite Translation Structures with Proper Dilatations;Combinatorics '84, Proceedings of the International Conference on Finite Geometries and Combinatorial Structures;1986