Havelock91'

@article{DBLP:journals/pami/Havelock91,
  author    = {David I. Havelock},
  title     = {The Topology of Locales and Its Effects on Position Uncertainty},
  journal   = {IEEE Trans. Pattern Anal. Mach. Intell.},
  volume    = {13},
  number    = {4},
  year      = {1991},
  pages     = {380-386},
  ee        = {http://doi.ieeecomputersociety.org/10.1109/34.88574},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}