@inproceedings{ConstructingConstraints,
  title = "Constructing constraints",
  author = "P.G.Jeavons",
  year = "1998",
  booktitle = "Proceedings of the 4th International Conference on Principles and Practice of Constraint Programming (CP98)",
  pages = "2-16",
  series = "Lecture Notes in Computer Science",
  url = "ftp://ftp.cs.rhul.ac.uk/pub/constraints/constructing.ps",
  volume = "1520",
  doi = "10.1007/3-540-49481-2_2",
}