• The construction of Pythagorean triples with prescribed initial differences, wdg, J.H. Swart, and P. Spencer. South African J. Science, 81:524, 1985.
• Optimal randomized algorithms for local sorting and set-maxima, wdg, V. King, C. Kenyon, and L. Schulman. SIAM J. Comput., 22:272-283, 1993. preliminary version in STOC, 1990.
• Crossing families, B. Aronov, P. Erd\Hos, wdg, D.J. Kleitman, M. Klugerman, J. Pach, and L.J. Schulman. Combinatorica, 14:127-134, 1994. preliminary version in 7th Computational Geometry, 1991.
• Forcing disjoint line segments in the plane, wdg, M. Katchalski, and D.J. Kleitman. Europ. J. Combin., 17:391-395, 1996.
• Counting pairs of lattice paths by intersections, I. Gessel, wdg, W. Shur, H. Wilf, and L. Yen. J. Combin. Theory Ser. A, 74:173-187, 1996.
• Automated bounds in recursive structures, wdg. Utilitas Math., 75:193-210, 2008.