Chapter 10, Section 10.2 (Coverage and terrain and obstacle data numerical requirements) of Annex 15 to the Chicago Convention — Aeronautical Information Services (Twelfth Edition — July 2004, incorporating Amendment No 34).
Kapitel 10, Abschnitt 10.2 (Coverage and terrain and obstacle data numerical requirements) von Anhang 15 zum Abkommen von Chicago — Aeronautical Information Services (Zwölfte Ausgabe — Juli 2004, mit Änderung Nr. 34).