@article{DBLP:journals/gis/Lopez02a,
  author    = {Carlos L{\'o}pez},
  title     = {Watermarking of digital geospatial datasets: a review of
               technical, legal and copyright issues},
  journal   = {International Journal of Geographical Information Science},
  volume    = {16},
  number    = {6},
  year      = {2002},
  pages     = {589-607},
  ee        = {http://dx.doi.org/10.1080/13658810210129148},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}