Nelly Schuster Christian Zirpins Stefan Tai Steve Battle Nils Heuer A Service-Oriented Approach to Document-Centric Situational Collaboration Processes. 221-226 2009 WETICE http://dx.doi.org/10.1109/WETICE.2009.23 conf/wetice/2009 db/conf/wetice/wetice2009.html#SchusterZTBH09