Manfred Bortenschlager Lyndon J. B. Nixon Robert Tolksdorf Elena Paslaru Bontas Simperl Coordination of Knowledge in Pervasive Environments. 43-47 2008 WETICE http://dx.doi.org/10.1109/WETICE.2008.53 conf/wetice/2008 db/conf/wetice/wetice2008.html#BortenschlagerNTS08