@book{20166,
	author = {International Workshop on Deontic Logic in Computer Science and Lomuscio, Alessio.},
	title = {Deontic logic in computer science :},
	publisher = {Springer,},
	year = {c2004.},
	series = {Lecture notes in computer science,},
	address = {Berlin ;},
	url = {http://www.loc.gov/catdir/enhancements/fy0818/2004105854-d.html}
}