@inbook {18915,
	title = {Plan Databases: Model and Algebra},
	booktitle = {Foundations of Information and Knowledge Systems},
	series = {Lecture Notes in Computer Science},
	volume = {2942},
	year = {2004},
	month = {2004///},
	pages = {302 - 319},
	publisher = {Springer Berlin / Heidelberg},
	organization = {Springer Berlin / Heidelberg},
	abstract = {Despite the fact that thousands of applications manipulate plans, there has been no work to date on managing large databases of plans. In this paper, we first propose a formal model of plan databases. We describe important notions of consistency and coherence for such databases. We then propose a set of operators similar to the relational algebra to query such databases of plans.},
	keywords = {Computer science},
	isbn = {978-3-540-20965-2},
	url = {http://www.springerlink.com/content/yqhlqtu4te18q2e1/abstract/},
	author = {Yaman,Fusun and Adali,Sibel and Nau, Dana S. and Sapino,Maria and Subrahmanian,V.},
	editor = {Seipel,Dietmar and Turull-Torres,Jos{\'e}}
}
