Supporting business contracts in open distributed systems, 2nd International Workshop on Services in distributed and Network EnvironmentsSDNE'95) Whister, Canada, 1995. ,
A three-layer architecture for e-contract enforcement in an e-service environment, Proceedings of the 36th Hawaii International Conference on System Sciences (HICSS'03), 2002. ,
A framework for e-services: A threelevel approach towards process and data management, 2002. ,
A declarative approach to business rules in contracts, Proceedings of the 1st ACM conference on Electronic commerce , EC '99, pp.68-77, 1999. ,
DOI : 10.1145/336992.337010