@inproceedings{frisch:GACLex,
  author = "Frisch, A.M. and Hnich, B. and Kiziltan, Z. and Miguel, I.
            and Walsh, T.",
  title = "Global Constraints for Lexicographic Orderings",
  booktitle = "Proceedings of the Eighth International Conference on
               Principles and Practice of Constraint Programming",
  editor = "van Hentenryck, P.",
  pages = {93--108},
  year = 2002}