%% -*-BibTeX-*- @InProceedings{GiVeSc97, author = "S. De Givry and G. Verfaillie and T. Schiex", booktitle = "Proceedings of the 3rd International Conference on Principles and Practice of Constraint Programming {(CP}-97)", title = "Bounding the Optimum of Constraint Optimization Problems", year = "1997", language = "English", }