L. Spector, and J. Klein. Genetic Programming Theory and Practice III, volume 9 of Genetic Programming, chapter 8, Springer, Ann Arbor, (12-14 May 2005)
L. Spector, and J. Klein. Genetic Programming Theory and Practice IV, volume 5 of Genetic and Evolutionary Computation, chapter 15, Springer, Ann Arbor, (11-13 May 2006)
S. Luke, and L. Spector. Late Breaking Papers at the Genetic Programming 1996
Conference Stanford University July 28-31, 1996, page 117--124. Stanford University, CA, USA, Stanford Bookstore, (28--31 July 1996)
S. Luke, and L. Spector. Genetic Programming 1997: Proceedings of the Second
Annual Conference, page 240--248. Stanford University, CA, USA, Morgan Kaufmann, (13-16 July 1997)
L. Spector. Proceedings of the Genetic and Evolutionary
Computation Conference (GECCO-2001), page 137--146. San Francisco, California, USA, Morgan Kaufmann, (7-11 July 2001)
L. Spector, H. Barnum, H. Bernstein, and N. Swamy. Proceedings of the Congress on Evolutionary
Computation, 3, page 2239--2246. Mayflower Hotel, Washington D.C., USA, IEEE Press, (6-9 July 1999)