K. Schmidt, I. Wagner:
"Ordering systems. Coordinative practices and artifacts in architectural design and planning. ";
Computer Supported Cooperative Work: The Journal of Collaborative Computing, 13 (2004), 5-6; 349 - 408.
http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC05936152