@Article{ulrich-etal:03,
  author =       "Markus Ulrich and Carsten Steger and Albert
                  Baumgartner",
  title =        "Real-time object recognition using a modified
                  generalized {H}ough transform",
  journal =      "Pattern Recognition",
  year =         "2003",
  volume =       "36",
  number =       "11",
  pages =        "2557--2570",
  month =        nov
}