@conference {DBLP:conf/aiia/RaffaetaRT03,
	title = {Qualitative Spatial Reasoning in a Logical Framework},
	booktitle = {AI*IA},
	year = {2003},
	pages = {78-90},
	author = {Alessandra Raffaet{\`a} and Chiara Renso and Franco Turini}
}
