GoodchildEKMS99'

@article{DBLP:journals/gis/GoodchildEKMS99,
  author    = {Michael F. Goodchild and
               Max J. Egenhofer and
               Karen K. Kemp and
               David M. Mark and
               Eric Sheppard},
  title     = {Introduction to the Varenius project},
  journal   = {International Journal of Geographical Information Science},
  volume    = {13},
  number    = {8},
  year      = {1999},
  pages     = {731-745},
  ee        = {http://dx.doi.org/10.1080/136588199240996},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}