1. Room Squares;Introduction to Combinatorial Designs;2016-04-19
2. Bibliography;Combinatorial Theory;2011-08-22
3. Configurations in finite projective planes;Ukrainian Mathematical Journal;1997-10
4. Hadamard Matrices;Combinatorial and Graph-Theoretical Problems in Linear Algebra;1993
5. Enumeration of Hamiltonian cycles and paths in a graph;Proceedings of the American Mathematical Society;1991