@article { vukov12,
	journal = {New Journal of Physics},
	keywords = {Game Theory;Multi-Agent Societies;Miscellaneous;},
	number = {063031},
	title = {Cognitive strategies take advantage of the cooperative potential of heterogeneous networks },
	volume = {14},
	year = {2012},
	author = {Jeromos Vukov and Francisco C. Santos and Jorge M. Pacheco}
}