TY - GEN digital ID - 139531682 TI - Optical document security PY - 1997 PB - London ; Boston Artech House Books DB - UniCat KW - Forgery KW - Prevention KW - Identity cards KW - Forgeries KW - Prevention KW - Counterfeits and counterfeiting KW - Prevention KW - Reproduction of money, documents, etc. KW - Prevention KW - Forgery - Prevention. KW - Identification cards - Forgeries - Prevention. KW - Counterfeits and counterfeiting - Prevention. KW - Reproduction of money, documents, etc. - Prevention. UR - https://www.unicat.be/uniCat?func=search&query=sysid:139531682 AB - ER -