=====The Geometry of Ecological Interactions: Simplifying Spatial Complexity=====
{{  http://www.leg.ufpr.br/~pedro/figures/geometry-ecological-interactions.jpg}}
|Ulf Dieckmann, Richard Law, Johan A. J. Metz (Editors)|

====Games on Grids====
|M. A. Nowak and K. Sigmund| [[http://www.leg.ufpr.br/~pedro/papers/books/nowak_games_grids_00.pdf|pdf]]|

Axelrod views neighbours as role models whose behaviour can be imitated. Or differently: each cell being taken over by an offspring of the previous owner or of one of the neighbours, depending on who did best in the previous generation - a kind of colonization.

====Wave Patterns in Spatial Games and the Evolution of Cooperation====
|R. Ferriere and R. E. Michod| [[http://www.leg.ufpr.br/~pedro/papers/books/ferriere_wave_patterns_00.pdf|pdf]]|

====The Dynamics of Invasion Waves====
|J. A.J. Metz, D. Mollison and F. van den Bosch| [[http://www.leg.ufpr.br/~pedro/papers/books/metz_invasion_waves_2000.pdf|pdf]]|