@article { encarnação12,
	journal = {Nature Scientific Reports},
	keywords = {Multi-Agent Societies;Miscellaneous;},
	number = {527},
	title = {Fractal cartography of urban areas },
	volume = {2},
	year = {2012},
	author = {Sara Encarnação and Marcos Gaudiano and Francisco C. Santos and José A. Tenedório and Jorge M. Pacheco}
}