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2. Growing Horizons 2017/2036;Airbus,2017
3. Flightpath 2050 Europe's Vision for Aviation;Advisory Council for Aeronautics Research in Europe (ACARE),2011
4. The geared turbofan technology—opportunities, challenges and readiness status;Riegler,2007
5. Intercooled recuperated gas turbine engine concept;Boggia,2005