@TechReport{	  stelldinger:2006b:tci,
  author	= {Stelldinger, Peer and K{\"o}the, Ullrich and Meine, Hans},
  title		= {Topologically Correct Image Segmentation Using Alpha
		  Shapes},
  year		= {2006},
  institution	= {Dept. Informatics, University of Hamburg},
  number	= {FBI-HH-M-336/06},
  url		= {http://kogs-www.informatik.uni-hamburg.de/~meine/publications/alphashapesegmentation.pdf}
		  ,
  html		= {\htmladdnormallink{PDF,
		  524kb}{http://kogs-www.informatik.uni-hamburg.de/~meine/publications/alphashapesegmentation.pdf}}
		  
}