R. Navigli, K. Litkowski, and O. Hargraves. Proceedings of the Fourth International Workshop on Semantic Evaluations (SemEval-2007), page 30--35. Prague, Czech Republic, Association for Computational Linguistics, (June 2007)
F. Castillo, K. Marshall, J. Green, and A. Kordon. GECCO 2002: Proceedings of the Genetic and
Evolutionary Computation Conference, page 1043--1047. New York, Morgan Kaufmann Publishers, (9-13 July 2002)