@article{ondistributivesubalgebrasofqualitative,
  title = {On Distributive Subalgebras of Qualitative Spatial and Temporal Calculi},
  author = {Zhiguo Long and Sanjiang Li},
  year = {2015},
  eprint = {1506.00337},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1506.00337v1},
}