00400nas a2200133   4500000000100000000000100001008004100002260003500043100001700078700001300095700001600108700001500124245012700139       2009                            d  c4-6 Feb. 2009aKolkata, India 1 aMayank Vatsa1 aR. Singh1 aAfzel Noore1 aS.K. Singh00aBelief Function Theory Based Biometric Match Score Fusion: Case Studies in Multi-instance and Multi-unit Iris Verification