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.
Public transport - Service interface for real-time information relating to public transport operations - Part 1: Context and framework; English version EN 15531-1:2022
Public transport - Service interface for real-time information relating to public transport operations - Part 3: Functional service interfaces; English version prEN 15531-3:2013
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