the normative systems perspective, ser
A. J. I. Jones and M. Sergot, On the characterization of law and computer systems: the normative systems perspective, ser. Deontic logic in computer science. Chichester, UK: John Wiley and Sons Ltd., 1993, pp. 275-307. [Online]. Available: http://portal.acm.org/citation.cfm?id=212501.212516
1993