@article {DBLP:journals/gis/MancarellaRRT04,
	title = {Integrating knowledge representation and reasoning in Geographical Information Systems},
	journal = {International Journal of Geographical Information Science},
	volume = {18},
	number = {4},
	year = {2004},
	pages = {417-447},
	author = {Paolo Mancarella and Alessandra Raffaet{\`a} and Chiara Renso and Franco Turini}
}
