Language proficiency requirements for flight crew and air traffic controllers underscores need for language training programmes
ICAO journal ; 58 , 4
2003
Aufsatz (Zeitschrift)
Englisch
BKL: | 55.54 Flugführung / 55.88 Luftverkehr, Raumfahrt | |
Lokalklassifikation TIB: | 385/7040/xxxx |
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