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How Iris Recognition Works - John Daugman, PhD, OBE, University of Cambridge, The Computer Laboratory, Cambridge CB2 3QG, U.K. http://www.cl.cam.ac.uk/~jgd1000/

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Iris recognition at airports uses eye-catching technology - By Daniel Sieberg CNN.com Technology Editor http://archives.cnn.com/2000/TECH/computing/07/24/iris.explainer/index.html

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How the Afghan Girl was Identified by Her Iris Patterns
http://www.cl.cam.ac.uk/~jgd1000/afghan.html

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