1. D. Dessimoz, J. Richiardi, C. Champod, A. Drygajlo, Multimodal Biometrics for Identity Documents (MBioID): State-of-the-Art (Version 2.0), Research Report, PFS 341-08.05, Institut de Police Scientifique - Ecole des Sciences Criminelles (Université de Lausanne) & Speech Processing and Biometric Group (Ecole Polytechnique Fédérale de Lausanne), June 2006, available on http://www.europeanbiometrics.info.
2. ISO/IEC JRC 1/SC 37 Working Draft, Biometric Data Interchange Formats—Part 4: Finger Image Data;International Standards Organisation,2004
3. ISO/IEC JRC 1/SC 37 Working Draft, Biometric Data Interchange Formats—Part 5: Face Image Data;International Standards Organisation,2004
4. Document 9303 on Machine Readable Travel Document;ICAO,2003
5. ICAO, Biometrics Deployment of Machine Readable Travel Documents, Technical Report v. 2.0, International Civil Aviation Organisation, Tech. Rep., 2004.