Mathias Broxvall, Peter Jonsson. Towards a Complete Classification of Tractability in Point Algebras for Nonlinear Time. In Joxan Jaffar, editor, Principles and Practice of Constraint Programming - CP 99, 5th International Conference, Alexandria, Virginia, USA, October 11-14, 1999, Proceedings. Volume 1713 of Lecture Notes in Computer Science, pages 129-143, Springer, 1999.
Abstract is missing.