Olga Kosheleva, Martine Ceberio, Vladik Kreinovich. Adding Constraints - A (Seemingly Counterintuitive but) Useful Heuristic in Solving Difficult Problems. In Martine Ceberio, Vladik Kreinovich, editors, Constraint Programming and Decision Making. Volume 539 of Studies in Computational Intelligence, pages 79-83, Springer, 2014. [doi]
Abstract is missing.