1. Ashbaugh, D.R. 1999 Quantitative-Qualitative Friction Ridge Analysis. An Introduction to Basic and Advanced Ridgeology. CRC Press, Boca Raton, FL.
2. Atkins, C.B., Allebach, J.P., and Bouman, C.A. 2000 Halftone postprocessing for improved rendition of highlights and shadows. Journal Electrical Imaging, 9, pp. 151-158.
3. Bolle, R.M., Connell, J.H., and Ratha, N.K. 2002 Biometric perils and patches. Pattern Recognition, Vol. 25, no. 12, pp. 2727-2738.
4. Chen, Y., Dass, D., Ross A., and Jain, A.K. 2005 Fingerprint deforma-tion models using minutiae locations and orientations. Proceedings of IEEE Workshop on Applications of Computer Vision (WACV), (Breckenridge, Colorado), pp. 150-155.
5. Chen, Y., Parziale, G., Diaz-Santana, E., and Jain, A.K. (2006) 3D Touchless fingerprints: Compatibility with legacy rolled images. Proceedings of Bio-metric Symposium, Biometric Consortium Conference, Baltimore, USA. Diaz-Santana, E. and Parziale, G. (2006) Liveness Detection Method. Patent pending. EP06013258.6.