@book{4505,
	author = {Berends, Jorn and Radu, Cosmina},
	title = {Open Data in Cities 2},
	publisher = {EUROPEAN DATA PORTAL},
	year = {Junio 2017},
	series = {Analytical Report },
	url = {https://www.europeandataportal.eu/en/highlights/open-data-european-cities},
}