@inbook {keenan2015spatialinfrastructure,
	title = {Spatial Data: Market and Infrastructure},
	booktitle = {Encyclopedia of GIS},
	year = {2015},
	pages = {1{\textendash}8},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	doi = {10.1007/978-3-319-23519-6_755-2},
	author = {Keenan, P and Miscione, G}
}
