Geographic information - Geography Markup Language (GML) - Part 2: Extended schemas and encoding rules (ISO 19136-2:2015); English version prEN ISO 19136-2:2017
Geoinformation - Geography Markup Language (GML) - Teil 2: Erweitertes Schema und Kodierregeln (ISO 19136-2:2015); Englische Fassung prEN ISO 19136-2:2017