EEMCS

Grefen, P.W.P.J. and Aberer, K. and Ludwig, H. and Hoffner, Y. (2001) CrossFlow: Cross-Organizational Workflow Management for Service Outsourcing in Dynamic Virtual Enterprises. IEEE Data Engineering Bulletin, 24 (1). pp. 52-57. ISSN not assigned

Hoffner, Y. and Field, S. and Grefen, P.W.P.J. and Ludwig, H. (2001) Contract Driven Creation and Operation of Virtual Enterprises. Computer Networks, 37 (2). pp. 111-136. ISSN 1389-1286 *** ISI Impact 1,176 ***

Hoffner, Y. and Field, S. and Grefen, P.W.P.J. and Ludwig, H. (2001) Contract Driven Creation and Operation of Virtual Enterprises. IBM Research Report RZ 3328 IBM Research.

Hoffner, Y. and Ludwig, H. and Grefen, P.W.P.J. and Aberer, K. (2001) CrossFlow: Integrating Workflow Management and Electronic Commerce. ACM SIGecom Exchanges, 2 (1). pp. 1-10. ISSN 1551-9031

Grefen, P.W.P.J. and Aberer, K. and Hoffner, Y. and Ludwig, H. (2000) CrossFlow: Cross-Organizational Workflow Management in Dynamic Virtual Enterprises. International Journal of Computer Systems Science & Engineering, 15 (5). pp. 277-290. ISSN 0267-6192 *** ISI Impact 0,319 ***

Grefen, P.W.P.J. and Aberer, K. and Hoffner, Y. and Ludwig, H. (2000) CrossFlow: Cross-Organizational Workflow Management in Dynamic Virtual Enterprises. Technical Report TR-CTIT-00-05, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625

Hoffner, Y. and Ludwig, H. and Gülcü, C. and Grefen, P.W.P.J. (2000) Architecture for Cross-Organizational Business Processes. Research Report RZ 3212 IBM Research.

Hoffner, Y. and Ludwig, H. and Gülcü, C. and Grefen, P.W.P.J. (2000) Architecture for Cross-Organizational Business Processes. In: 2nd International Workshop on Advanced Issues of E-Commerce and Web-Based Information Systems (WECWIS), 8-9 June 2000, Milpitas, California, USA. pp. 2-11. IEEE Computer Society. ISBN 0-7695-0610-0

Grefen, P.W.P.J. and Hoffner, Y. (1999) CrossFlow: Cross-Organizational Workflow Support for Virtual Organizations. In: Ninth International Workshop on Research Issues on Data Engineering: Information Technology for Virtual Enterprises, 23-24 Mar 1999, Sydney, Australia. pp. 90-91. IEEE Computer Society. ISBN 0-7695-0119-2