AIR NAVIGATION SERVICES (PUBLIC ADMINISTRATION)
-
BTAIR TRAFFIC CONTROL (PUBLIC ADMINISTRATION)
-
UDC351.814.3
-
Descriptor GERFLUGSICHERUNG (OEFFENTLICHE VERWALTUNG)
-
Descriptor ENGAIR NAVIGATION SERVICES (PUBLIC ADMINISTRATION)
-
Descriptor FRESURETÉ EN VOL (ADMINISTRATION PUBLIQUE)
-
Variant GERSICHERUNG/FLUGSICHERUNG (OEFFENTLICHE VERWALTUNG)
-
Variant ENGSERVICES/AIR NAVIGATION SERVICES (PUBLIC ADMINISTRATION)
-
Variant FREVOL/SURETÉ EN VOL (ADMINISTRATION PUBLIQUE)
-
RTAIR TRAFFIC + AVIATION (TRANSPORTATION AND TRAFFIC)