- 7th International Conference on Hybrid Intelligent Systems, HIS 2007, page 332--335. Kaiserslautern, Germany, IEEE, (May 2008)
- Kasseler Informatikschriften KIS, 2007, 2. University of Kassel, University of Kassel, FB-16, Distributed Systems Group, Wilhelmshöher Allee 73, 34121 Kassel, Germany, (July 2007)
- IEEE Transactions on Evolutionary Computation 7(5):456--481 (October 2003)
- Artificial Intelligence in Medicine 32(3):195--216 (November 2004)
- Genetic Programming, Proceedings of EuroGP'2001, volume 2038 of LNCS, page 176--191. Lake Como, Italy, Springer-Verlag, (June 2002)
- Hampshire College, Division III thesis, (May 2001)
- Genetic Programming and Evolvable Machines 1(1/2):37--56 (April 2000)
- Soft Computing 11(6):503--518 (April 2007)
- Genetic Programming, Proceedings of EuroGP'2001, volume 2038 of LNCS, page 218--233. Lake Como, Italy, Springer-Verlag, (June 2002)
- International Journal of Intelligent Systems Technologies and Applications 2(2/3):255--270 (July 2008)
- Proceedings of BIONETICS 2007, 2nd International Conference on Bio-Inspired Models of Network, Information, and Computing Systems, Radisson SAS Beke Hotel, 43. Terez krt., Budapest H-1067, Hungary, Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering ICST, IEEE, ACM, (December 2007)
- IEEE Transactions on Instrumentation and Measurement 55(1):327--336 (February 2006)
- Mechatronics 13(8-9):791--807 (October 2003)
- Late Breaking Papers at the Genetic Programming 1998 Conference, page 135--142. University of Wisconsin, Madison, Wisconsin, USA, Stanford University Bookstore, (October 1999)
- IEEE Transactions on Systems, Man and Cybernetics, Part B 34(4):1730--1742 (August 2004)
- IEEE Transactions on Evolutionary Computation 4(3):242--258 (September 2000)
- Proceedings of the Genetic and Evolutionary Computation Conference GECCO-2001, page 179. San Francisco, California, USA, Morgan Kaufmann, (July 2001)
- IEEE 2005 Symposium on Computational Intelligence and Games CIG'05, page 211--217. Essex, UK, IEEE Press, (April 2005)
- GECCO '07: Proceedings of the 9th annual conference on Genetic and evolutionary computation, 2, page 1612--1619. London, ACM Press, (July 2007)
- Applications of Evolutionary Computing, EvoWorkshops2004: EvoBIO, EvoCOMNET, EvoHOT, EvoIASP, EvoMUSART, EvoSTOC, volume 3005 of LNCS, page 31--40. Coimbra, Portugal, Springer Verlag, (May 2004)


user