T. Weise, and M. Zapf. Proceedings of the First ACM/SIGEVO Summit on Genetic and Evolutionary Computation (GEC'09), page 577--584. ACM Press: New York, NY, USA, (2009)
M. Wan, T. Weise, and K. Tang. Proceedings of the 14th European Conference on Genetic Programming (EuroGP'11), Springer-Verlag GmbH: Berlin, Germany, (2011)Nominated for best paper..