1. van der Aalst, W.M.P.: Don’t go with the flow: Web services composition standards exposed. IEEE Intelligent Systems 18(1), 72–76 (2003)
2. van der Aalst, W.M.P., Dumas, M., ter Hofstede, A.H.M., Wohed, P.: Pattern- Based Analysis of BPML (and WSCI). Technical Report FIT-TR-2002-05, Faculty of IT, Queensland University of Technology, Brisbane, Australia (2002),
http://www.citi.qut.edu.au/pubs/technical/pattern_based_analysis_BPML.pdf
3. van der Aalst, W.M.P., van Hee, K.M.: Workflow Management: Models, Methods, and Systems. MIT Press, Cambridge (2002)
4. van der Aalst, W.M.P., ter Hofstede, A.H.M.: YAWL: Yet Another Workflow Language. Technical Report FIT-TR-2002-06, Faculty of IT, Queensland University of Technology, Brisbane, Australia, tmitwww.tm.tue.nl/research/patterns/download/yawl_qut_report_FIT-TR- 2002-06.pdf (2002)
5. van der Aalst, W.M.P., ter Hofstede, A.H.M., Kiepuszewski, B., Barros, A.P.: Workflow patterns. Distributed and Parallel Databases 14(1), 5–51 (2003)