@article {roy2012using,
	title = {Using social network analysis to profile people based on their e-communication and travel balance},
	journal = {Journal of Transport Geography},
	volume = {24},
	year = {2012},
	pages = {111{\textendash}122},
	publisher = {Pergamon},
	author = {Roy, P and Mart{\'{\i}nez, AJ and Miscione, G and Zuidgeest, MHP and van Maarseveen, MFAM}
}
