@InProceedings{	  laica-calib,
  author	= "Alberto Broggi AND Alessandra Fascioli AND Rean Isabella
		  Fedriga AND Stefano Ghidoni",
  title		= "{Automatic Calibration of a Urban Video Surveillance
		  System through the Observation of Zebra Crossings}",
  booktitle	= "{Procs.~5\textsuperscript{th}~Intl.~Conf.~on Computer
		  Vision Systems}",
  address	= "Bielefeld, Germany",
  month		= mar,
  eprint	= "doi:10.2390/biecoll-icvs2007-51",
  year		= 2007
}