O jistých rovinných konfiguracích obsahujících , a -body a konfiguracích singulárních
On 3-harness weaving: cataloging designs generated by fundamental blocks having distinct rows and columns.
On a planar construction of quasigroups
On a problem of Molluzzo concerning Steinhaus triangles in finite cyclic groups.
On a Theorem of Livingstone and Wagner.
On Affinite Steiner Ternary Algebras
On Averaging Sets.
On existence of some hyplanes of order (n,m)
On Golomb birulers and their applications
On Homogeneous Systems of Linked Symmetric Designs.
On magic graphs
On Property B and on Steiner Systems.
On Representing Sylvester-Gallai Designs.
On Squashed Designs.
On the construction of non-isomorphic Steiner quadruple systems
On the Existence of Room Squares of Order 4n
On the General Motion-Planning Problem with Two Degrees of Freedom.
On the Structure of Affine Designs.
On the Structure of Finite Collineation Groups Containing Symmetries of Generalized Quadrangles.
On the structure of the Steiner triple systems derived from the Steiner quadruple systems