00308nam a2200109Ia 450000500170000008000210001724500800003826000290011830000160014758300170016365000180018020260716043822.0  a10.05.01 C2771vs  aVSAT communication systems as an optimized solution for air traffic control  bICAOa[Montreal]CAc1999  a4 p. : maps  c7/9/07kJOYD  aAIR TRANSPORT