@Article{	  henriksen.sporring.ea:04,
  author	= {Knud Henriksen and Jon Sporring and Kasper Hornb{\ae}k},
  title		= {Virtual Trackballs Revisited},
  journal	= {IEEE Transactions on Visualization and Computer Graphics},
  year		= {2004},
  volume	= {10},
  number	= {2},
  pages		= {206--216}
}

@Article{	  henriksen:91b,
  author	= {Knud Henriksen},
  title		= {Orientering fra bev{\ae}gelse},
  journal	= {Billeder p{\aa} vej (Dansk Billedbehandlings Konsortiums
		  nyhedsblad)},
  year		= {1991},
  volume	= {5},
  pages		= {11--13},
  month		= apr
}

@Article{	  krotkov.henriksen.ea:90,
  author	= {Eric Krotkov and Knud Henriksen and Ralf Kories},
  title		= {Stereo Ranging with Verging Cameras},
  journal	= {IEEE Transactions on Pattern Analysis and Machine
		  Intelligence},
  year		= {1990},
  volume	= {12},
  number	= {12},
  month		= dec
}

@Article{	  henriksen.arnspang:89,
  author	= {Knud Henriksen and Jens Arnspang},
  title		= {Determination of the Orientation of a translating 3{D}
		  straight Line},
  journal	= {Pattern Recognition Letters},
  year		= {1989},
  volume	= {10},
  pages		= {251--258},
  month		= oct
}