Bibliografia principal:
Handbook of Biometrics; Anil K. Jain (Editor), Patrick Flynn (Editor), Arun A. Ross (Editor); Springer; 1 edition (October 29, 2007), ISBN-13: 978-0387710402.
Advances in Biometrics: Sensors, Algorithms and Systems, N. K. Ratha (Editor), Venu Govindaraju (Editor); Springer; 1 edition (November 7, 2007), ISBN-13: 978-1846289200,