BS IEC 62106-4:2018 - Radio data system (RDS). VHF/FM sound broadcasting in the frequency range from 64,0 MHz to 108,0 MHz. Registered code tables (British Standard)
Radio Data System - Wikiwand
IEC 62106 Ed. 1.0 en:2000 - Specification of the radio data system (RDS) for VHF/FM sound broadcasting in the frequency range from 87,5 to 108,0 MHz
THE NASA DATA SYSTEMS STANDARDIZATION PROGRAM RADIO FREQUENCY AND MODULATION
Tutorial: Using RFtap to Decode RDS
Publications - RDS Forum - Radio Data System
PDF) An Ad Hoc Broadcast Scheme using the Radio Data System (RDS) in the FM Band