1. Carlsen, S.: Action Port Model: A Mixed Paradigm Conceptual Workflow Modeling Language. In: Third IFCIS Conference on Cooperative Information Systems (CoopIS 1998), New York (1998)
2. Casati, F., Shan, M.C.: Dynamic and Adaptive Composition of e-Services. Information Systems Journal 26(3) (2001)
3. EXTERNAL EXTERNAL - Extended Enterprise Resources, Networks And Learning, EU Project, IST-1999-10091, New Methods of Work and Electronic Commerce, Dynamic Networked Organisations. Partners: DNV, GMD-IPSI, Zeus E.E.I.G., METIS, SINTEF Telecom and Informatics (2000-2002)
4. Fox, M.S., Gruninger, M.: On Ontologies and Enterprise Modelling. In: International Conference on Enterprise Integration Modelling Technology, vol. 97 (1997)
5. Haake, J., Ohren, O., Krogstie, J.: EXTERNAL WP4 - D13. Prototype: Use case - External Project, The External Project - IST 1999-10091 4-00-D-2002-01-0 (2002)