1ISO. ISO/IEC FCD 15693-2 (FINAL COMMITTEE DRAFT), Identification cards-Contactless integrated circuit (s) cards-Vicinity cards-Part 2: Radio frequency power and signal interface. 1999.
3ISO.ISO/IEC FCD 15693-2(FINAL COMMITTEE DRAFT).Identification cards-Contactless integrated circuit(s)cards-Vicinity cards-Part 2:Radio frequency power and signal interface.1999