@article{shortandlongsupportsforconstraint,
  title = {Short and Long Supports for Constraint Propagation},
  author = {Peter Nightingale and Ian Philip Gent and Christopher Jefferson and Ian Miguel},
  year = {2014},
  eprint = {1402.0559},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1402.0559v1},
}