@inproceedings{ijcai2003p172,
  title     = {Contract Algorithms and Robots on Rays: Unifying Two Scheduling Problems},
  author    = {Bernstein, Daniel S. and Finkelstein, Lev and Zilberstein, Shlomo},
  booktitle = {Proceedings of the Eighteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-03}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Georg Gottlob},
  pages     = {1211--1216},
  year      = {2003},
  url       = {https://ijcai.org/proceedings/2003/172},
}