Ulle Endriss Jérôme Lang Francesca Rossi Tuomas Sandholm 07431 Executive Summary - Computational Issues in Social Choice. 2007 Computational Issues in Social Choice http://drops.dagstuhl.de/opus/volltexte/2007/1274 conf/dagstuhl/2007P7431 db/conf/dagstuhl/P7431.html#EndrissLRS07