1. ICAO Doc 9303 Part 1 Machine Readable Passports, Volume 2 Specifications for Electronically Enabled Passports with Biometric Identification Capability, Sixth Edition-2006
http://www.icao.int/Security/mrtd/Downloads/Doc%209303/Doc%209303%20English/Doc%209303%20Part%201%20Vol%202.pdf
2. ICAO Doc 9303 Part 3 Machine Readable Official Documents, Volume 2 Specifications for Electronically Enabled MRtds with Biometric Identification Capability, Third Edition-2008
http://www.icao.int/publications/Documents/9303_p3_v2_cons_en.pdf
3. ICAO TR Supplemental Access Control for Machine Readable Travel Documents, Version-1.01, Date-November 11, 2010
http://www.icao.int/Security/mrtd/Downloads/Technical%20Reports/Technical%20Report.pdf
4. European Commision, Commision Decision of 4.8.2012, amending Commission Decision C(2006) 2909, Section 2.2.3 point (3)
5. ISO/IEC 11770-2 Information technology — Security techniques — Key management — Part 2:Mechanisms using symmetric techniques