1. Supporting collaborative information sharing with the World-Wide Web: The BSCW Shared Workspace system;Bentley,1995
2. Operational research and environmental planning;Daniel,1996
3. Enhancement schemes for constraint processing: Backjumping, learning and cutset decomposition;Dechter;Artificial Intelligence,1990
4. Collaborative spatial decision-making;Densham,1995
5. Assessing the consistency of complete and incomplete topological information;Egenhofer;Geographical Systems,1993