@InProceedings{baumgartner-etal:97,
  author =       "Albert Baumgartner and Carsten Steger and Helmut
                  Mayer and Wolfgang Eckstein",
  title =        "Semantic Objects and Context for Finding Roads",
  editor =       "David M. {McKeown, Jr.} and J. Chris McGlone and
                  Olivier Jamet",
  series =       "Proc. SPIE 3072",
  pages =        "98--109",
  booktitle =    "Integrating Photogrammetric Techniques with Scene
                  Analysis and Machine Vision {III}",
  year =         "1997"
}