@article{DBLP:journals/cgf/GiertsenL94,
  author    = {Christopher Giertsen and
               A. Lucas},
  title     = {3D Visualization for 2D GIS: an Analysis of the Users' Needs
               and a Review of Techniques},
  journal   = {Comput. Graph. Forum},
  volume    = {13},
  number    = {3},
  year      = {1994},
  pages     = {1-12},
  ee        = {http://dx.doi.org/10.1111/1467-8659.1330001},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}