Jörg M. Haake Applying Collaborative Open Hypermedia Concepts to Extended Enterprise Engineering and Operation. 17-27 2001 conf/ohs/2001 OHS-7/SC-3/AH-3 http://link.springer.de/link/service/series/0558/bibs/2266/22660017.htm db/conf/ohs/ohs2001.html#Haake01