Public transport - Service interface for real-time information relating to public transport operations - Part 3: Functional service interfaces; English version CEN/TS 15531-3:2007
Intelligent transport systems - Public transport - Identification of Fixed Objects in Public Transport (IFOPT); English version EN 28701:2012— 160 стр.
Public transport - Service interface for real-time information relating to public transport operations - Part 3: Functional service interfaces; English version EN 15531-3:2015— 131 стр.