Kai Olav Ellefsen. Balancing the Costs and Benefits of Learning Ability. In Pietro Liò, Orazio Miglino, Giuseppe Nicosia, Stefano Nolfi, Mario Pavone, editors, Proceedings of the Twelfth European Conference on the Synthesis and Simulation of Living Systems: Advances in Artificial Life, ECAL 2013, Sicily, Italy, September 2-6, 2013. pages 292-299, MIT Press, 2013. [doi]