@inproceedings{CIG-2012-GreenwoodA,
	author        = "Garrison W. Greenwood and Phillipa M. Avery",
	booktitle     = "{Proceedings of the Eighth Conference on Computational Intelligence and Games}",
	doi           = "10.1109/CIG.2012.6374132",
	isbn          = "978-1-4673-1193-9",
	pages         = "9--16",
	publisher     = "{IEEE}",
	title         = "{Update rules, reciprocity and weak selection in evolutionary spatial games}",
	year          = 2012,
}