Sven Casteleyn Florian Daniel Peter Dolog Maristella Matera Geert-Jan Houben Olga De Troyer AEWSE'07 Preface. 2007 AEWSE http://ceur-ws.org/Vol-267/paper1.pdf conf/icwe/2007aewse db/conf/icwe/aewse2007.html#CasteleynDDMHT07