@book{4944,
	author = {Ligozat, Gerard},
	title = {Qualitative Spatial and Temporal Reasoning /},
	publisher = {ISTE,},
	year = {c2012.},
	address = {London :},
	note = {Includes bibliographical references and index.},
	url = {https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/9781118601457?download=true}
}