@article{Bittner2002,
  author	= {Bittner, Thomas},
  URL		= {http://people.ifomis.uni-leipzig.de/thomas.bittner/ThomasBittnerAMAI01.pdf},
  pdf		= {http://people.ifomis.uni-leipzig.de/thomas.bittner/ThomasBittnerAMAI01.pdf},
  title		= {Approximate qualitative temporal reasoning},
  booktitle	= {Annals of Mathematics and Artificial Intelligence},
  volume	= {35},
  year		= {2002},
  number	= {1-2}
}