1. Aviation Maintenance Technician Handbook. https://www.faa.gov/regulations_policies/handbooks_manuals/aircraft/amt_airframe_handbook. Aviation Maintenance Technician Handbook. https://www.faa.gov/regulations_policies/handbooks_manuals/aircraft/amt_airframe_handbook.
2. Flight instruments and navigation systems. Politecnico di Milano - Dipartimento di Ingegneria Aerospaziale Aircraft Systems - Lecture Notes Version 2004. Flight instruments and navigation systems. Politecnico di Milano - Dipartimento di Ingegneria Aerospaziale Aircraft Systems - Lecture Notes Version 2004.
3. Geomagic Phantom Premium Overview. http://www.geomagic.com/en/products/phantom-premium/overview/. Geomagic Phantom Premium Overview. http://www.geomagic.com/en/products/phantom-premium/overview/.
4. Honeywell Testing In-Flight Voice Recognition for Future Cockpits. https://aerospace.honeywell.com/news/honeywell-testing-in-flight-voice-recognition-for-future-cockpits. Honeywell Testing In-Flight Voice Recognition for Future Cockpits. https://aerospace.honeywell.com/news/honeywell-testing-in-flight-voice-recognition-for-future-cockpits.
5. SESAR
: Single European Sky ATM Research. http://www.sesarju.eu. SESAR: Single European Sky ATM Research. http://www.sesarju.eu.