@inproceedings{CRR08,
	author = {Caballero, Rafael 
		and Rodr\'{\i}guez-Artalejo, Mario 
		and Romero-D\'{\i}az, Carlos A. },
	title = {Similarity-based reasoning in qualified logic programming},
	booktitle = {PPDP '08: Proceedings of the 10th international ACM SIGPLAN conference on Principles and Practice of Declarative Programming},
	year = {2008},
	pages = {185-194},
	location = {Valencia, Spain},
	publisher = {ACM},
	address = {New York, NY, USA}}