Identification card systems – European Citizen Card – Part 1: Physical, electrical and transport protocol characteristics; German version CEN/TS 15480-1:2007
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 07/01/2007

Identification card systems – European Citizen Card – Part 1: Physical, electrical and transport protocol characteristics; English version CEN/TS 15480-1:2012
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 01/01/2013