2001
On the size of optimal binary codes of length 9 and covering radius 1.
IEEE Trans. Inf. Theory, 2001

Bounds on identifying codes.
Discret. Math., 2001

1999
The smallest covering code of length 8 and radius 2 has 12 words.
Ars Comb., 1999

On tHe Size of Identifying Codes.
Proceedings of the Applied Algebra, 1999

1998
Several New Lower Bounds on the Size of Codes with Covering Radius One.
IEEE Trans. Inf. Theory, 1998

How Far Can Nim in Disguise Be Stretched?
J. Comb. Theory A, 1998

Several new lower bounds for football pool systems.
Ars Comb., 1998

1990
The Sprague-Grundy Function for Wythoff's Game.
Theor. Comput. Sci., 1990