J. Martin, S. Edwards, and C. Shaffer. Proceedings of the Eleventh Annual International Conference on International Computing Education Research, page 3--11. New York, NY, USA, ACM, (2015)
M. Walker, H. Edwards, and C. Messom. 2007 IEEE Congress on Evolutionary Computation, page 4631--4638. Singapore, IEEE Computational Intelligence Society, IEEE Press, (25-28 September 2007)
M. Walker, H. Edwards, and C. Messom. Proceedings of the 10th European Conference on Genetic
Programming, volume 4445 of Lecture Notes in Computer Science, page 23--32. Valencia, Spain, Springer, (11 - 13 April 2007)