Media type: E-Article Title: Semantic Web Rules: A Contract Agreement Policy-Based Workflow Methodology for Agents Interacting in the Semantic Web Contributor: Kravari, Kalliopi; Kastori, Grammati-Eirini; Bassiliades, Nick; Governatori, Guido imprint: Springer Berlin Heidelberg, 2010 Published in: Semantic Web Rules Language: Not determined DOI: 10.1007/978-3-642-16289-3_19 ISSN: 0302-9743; 1611-3349 Origination: Footnote: