J.L. Wayman, A.K. Jain, D. Maltoni and D. Maio, Biometric Systems - Technology, Design and Performance Evaluation, Springer, 2005.
D. Maio and D. Maltoni, "A secure protocol for electronic commerce based on fingerprints and encryption", in proceedings ISAS (ISAS'99), Orlando (Florida), vol.4, pp.519-525, August 1999. Abstract