Usability and biometric verification at the ATM interface, by Lynne Coventry, Antonella De Angeli and Graham Johnson, 2003

Usability evaluation of multi-modal biometric verification systems, by Doroteo T. Toledano, Rubén Fernández Pozo, Álvaro Hernández Trapote and Luis Hernández Gómez, 2006

Red-Eye Blink, Bendy Shuffle, and the Yuck Factor: A User Experience of Biometric Airport Systems, by M. Angela Sasse, 2007

A study of identical twins' palmprints for personal verification, by Adams Wai-Kin Kong, David Zhang and Guangming Lu, 2006

Biometric iris recognition system using a fast and robust iris localization and alignment procedure, by Balaji Ganeshan, Dhananjay Theckedath, Rupert Young and Chris Chatwin, January 2006

Information fusion in biometrics, by Arun Ross and Anil Jain, September 2003

Implementation of Biometric Systems - Security and Privacy Considerations, by Colin Soutar, December 2002

On the similarity of identical twin fingerprints, by Anil K. Jain, Salil Prabhakar and Sharath Pankanti, November 2002

Usability evaluation of multi-modal biometric verification systems, by Doroteo T. Toledano, Rubén Fernández Pozo, Álvaro Hernández Trapote and Luis Hernández Gómez, September 2006

How iris recognition works, by John Daugman, January 2004

Biometric identification, by Anil Jain, Lin Hong and Sharath Pankanti, 2000

High Confidence Visual Recognition of Persons by a Test of Statistical Independence, by John G. Daugman, November 1993

Surveys

Things to check:

NIST Face Recognition Vendor Test (FRVT) 2006 and the Iris Challenge Evaluation (ICE) 2006

Public Attitudes Toward the Uses of Biometric Identification Technologies by Government and the Private Sector, 2002

An evaluation of iridology, by A. Simon, D. M. Worthen and J. A. Mitas, 1979