Your search returned the following 3 documents:

3. The max problem revisited: the importance of mutation in genetic programming
   Timo Kötzing, Andrew M. Sutton, Frank Neumann, and Una-May O'Reilly
   In: GECCO’12 : Proceedings of the Fourteenth International Conference on Genetic and Evolutionary Computation, Philadelphia, USA, 2012, 1333-1340
   
2. Computational complexity analysis of simple genetic programming on two problems modeling isolated program semantics
   Greg Durrett, Frank Neumann, and Una-May O'Reilly
   In: FOGA'11 : Proceedings of the 2011 ACM/SIGEVO Foundations of Genetic Algorithms XI, Schwarzenberg, Austria, 2011, 69-80
   
1. Optimizing the Layout of 1000 Wind Turbines
   Markus Wagner, Kalyan Veeramachaneni, Frank Neumann, and Una-May O'Reilly
   In: European Wind Energy Association Annual Event, Brussels, Belgium, 2011, 1-10
   [PDF: Download: 2011ewea.pdf]