@misc{2016, title={Raising Ambition, Technology Strategy and Portfolio Update 2016}, url={https://www.ati.org.uk/wp-content/uploads/2017/10/Raising-Ambition-ATI-Technology-Strategy-Portfolio-Update-2016.pdf}, author={Aerospace Technology Institute}, year={2016} }
@misc{Clean Sky 2, title={Clean Sky 2 Joint Undertaking Development Plan}, url={http://www.cleansky.eu/sites/default/files/inline-files/51.%20CS2DP%20December%202017.pdf}, author={Clean Sky 2} }
@misc{2011, title={Flightpath 2050 Europe’s Vision for Aviation}, url={https://ec.europa.eu/transport/sites/transport/files/modes/air/doc/flightpath2050.pdf}, author={European Commission}, year={2011} }
@misc{2015, title={NASA Technology Roadmaps TA15 Aeronautics}, url={https://www.nasa.gov/sites/default/files/atoms/files/2015_nasa_technology_roadmaps_ta_15_aeronautics_final.pdf}, author={NASA}, year={2015} }
@misc{2017, title={NASA Aeronautics Strategic Implementation Plan}, url={https://www.nasa.gov/sites/default/files/atoms/files/sip-2017-03-23-17-high.pdf}, author={NASA}, year={2017} }
@misc{Strategic Research & Innovation Agenda 2017 Update_2017, volume={1}, url={https://www.acare4europe.org/sites/acare4europe.org/files/document/ACARE-Strategic-Research-Innovation-Volume-1.pdf}, publisher={Advisory Council for Aviation Research and Innovation in Europe  (ACARE)}, year={2017} }