@InProceedings{steger:00,
  author =       "Carsten Steger",
  title =        "Subpixel-Precise Extraction of Lines and Edges",
  booktitle =    "International Archives of Photogrammetry and Remote
                  Sensing",
  volume =       "XXXIII, part B3",
  pages =        "141--156",
  year =         "2000"
}