International Civil Aviation Organization. Operations Division Bezüge im Wissensnetz Isb (5) DNB-Titeldaten COM OPS Divisional meeting Communications Operations divisional meeting Communications, Meteorology, Operations divisional meeting Meteorology and Operations Divisional meeting Special Communications, Operations divisional meeting Verfasst (2) DNB-Titeldaten Final report of the Operations Division Report of the Operations Division Creator (2) DNB-Titeldaten Final report of the Operations Division Report of the Operations Division Administrative Überordnung der Körperschaft (1) GND-Körperschaften International Civil Aviation Organization. Air Navigation Commission