1. Prabhakar, S., Kittler, J., Maltoni, D., O’Gorman, L., Tan, T.: Introduction to the Special Issue on Biometrics: Progress and Directions. IEEE Trans. on PAMI 29(4), 513–516 (2007)
2. Goudelis, G., Tefas, A., Pitas, I.: On Emerging Biometric Technologies. In: Proc. of COST 275 Biometrics on the Internet, Hatfield, UK, pp. 71–74 (2005)
3. Morales, A., Ferrer, M.A., Travieso, C.M., Alonso, J.B.: A knuckles texture verification method in a transformed domain. In: Proc. of 1st Spanish Workshop on Biometrics, Girona, Spain (2007) (on CD)
4. Choraś, M.: Emerging Methods of Biometrics Human Identification. In: Proc. of ICICIC 2007 - Kummamoto, Japan. IEEE CS Press, Los Alamitos (2007)
5. Kasprzak, J., Leczynska, B.: Cheiloscopy. Human Identification on the Basis of Lip Prints (in Polish). CLK KGP Press, Warsaw (2001)