Stéphane Airiau Ulle Endriss Umberto Grandi Daniele Porello Joel Uckelman Aggregating Dependency Graphs into Voting Agendas in Multi-Issue Elections. 18-23 2011 IJCAI http://ijcai.org/papers11/Papers/IJCAI11-015.pdf conf/ijcai/2011 db/conf/ijcai/ijcai2011.html#AiriauEGPU11