@book{206470,
	author = {Ligozat, Gérard.},
	title = {Qualitative Spatial and Temporal Reasoning /},
	publisher = {ISTE ;},
	year = {2012.},
	address = {London, UK :},
	url = {http://onlinelibrary.wiley.com/book/10.1002/9781118601457}
}