1. 1. W. Zhao, R. Chellappa, P.J. Philips, and A. Rosenfeld, "Face Recognition: A literature survey," ACM Computing Surveys, 35, 4, 399-458, 2003.
   2. S. Prabhakar, S. Pankanti, and A. K. Jain, "Biometric Recognition: Security and Privacy Concerns,” IEEE Security and Privacy, 1, 2, 33-42, 2003.
   3. A. Cordiner, “Illumination Invariant Face Detection,” MComSc Thesis, University of Wollongong, 2009.
   4. A. Pentland, and M. Turk, “Eigenfaces for Recognition,” Journal of Cognitive Neuroscience 3, 71- 86, 1991.
   5. P. Belhumeur, N. Peter, J. Hespanha, and D. J. Kriegman, "Eigenfaces vs. Fisherfaces: Recognition Using Class Specific Linear Projection,” IEEE Transactions on Pattern Analysis and Machine Intelligence, 19, 7, 711-720, 1997.