Paul S. Andrews Leo S. D. Caves René Doursat Simon J. Hickinbotham Fiona A. C. Polack Susan Stepney Tim Taylor 0001 Jon Timmis Proceedings of the Thirteenth European Conference Artificial Life, ECAL 2015, York, UK, July 20-24, 2015 MIT Press ECAL 2015 978-0-262-33027-5 https://direct.mit.edu/isal/ecal2015/volume/27 db/conf/ecal/ecal2015.html