Jon Atle Gulla Stein L. Tomassen Darijus Strasunskas Semantic Interoperability in the Norwegian Petroleum Industry. 81-93 2006 conf/ista/2006 ISTA db/conf/ista/ista2006.html#GullaTS06 http://subs.emis.de/LNI/Proceedings/Proceedings84/article4305.html