T. Paul, and H. Iba. Genetic Programming Theory and Practice IV, volume 5 of Genetic and Evolutionary Computation, chapter 10, Springer, Ann Arbor, (11-13 May 2006)
M. Martin. IEEE/RSJ International Conference on Intelligent
Robots and System, 1, page 67--72. EPFL, Lausanne, Switzerland, IEEE, (30 September-5 October 2002)
W. Langdon, and P. Nordin. Genetic Programming, Proceedings of EuroGP'2001, volume 2038 of LNCS, page 313--324. Lake Como, Italy, Springer-Verlag, (18-20 April 2001)
S. Gustafson, and W. Hsu. Genetic Programming, Proceedings of EuroGP'2001, volume 2038 of LNCS, page 291--301. Lake Como, Italy, Springer-Verlag, (18-20 April 2001)
M. Akbarzadeh-T., E. Tunstel, K. Kumbla, and M. Jamshidi. Proceedings of the 1998 IEEE World Congress on
Computational Intelligence, 2, page 1200--1205. Anchorage, Alaska, USA, IEEE Press, (5-9 May 1998)