Ronny Siebes David Dupplaw Spyros Kotoulas Adrian Perreau de Pinninck Frank van Harmelen David Robertson The OpenKnowledge System: An Interaction-Centered Approach to Knowledge Sharing. 381-390 2007 conf/otm/2007-1 OTM Conferences (1) http://dx.doi.org/10.1007/978-3-540-76848-7_25 db/conf/otm/otm2007-1.html#SiebesDKPHR07