@InProceedings{baumgartner-etal:97,
  author =       "Albert Baumgartner and Carsten Steger and Helmut
                  Mayer and Wolfgang Eckstein",
  title =        "Multi-Resolution, Semantic Objects, and Context for
                  Road Extraction",
  pages =        "140--156",
  editor =       "Wolfgang F{\"o}rstner and Lutz Pl{\"u}mer",
  booktitle =    "Semantic Modeling for the Acquisition of Topographic
                  Information from Images and Maps",
  year =         "1997",
  publisher =    "Birkh{\"a}user Verlag",
  address =      "Basel"
}