1. Ec.europa.eu, Jos Delbeke’s speech during the conference “A New Flightplan”. (European Commission, 2016), Available at http://ec.europa.eu/clima/news/articles/news_2012020701_en.htm . Accessed 20 Sep 2016
2. Anon, (2016), Available at https://www.iata.org/policy/environment/Documents/atag-paper-on-cng2020-july2013.pdf . Accessed 20 Sep 2016
3. Airbus, Eco-efficiency/Airbus, a leading aircraft manufacturer (2016). Available at http://www.airbus.com/company/eco-efficiency/ . Accessed 20 Sep 2016
4. A. Fink et al., Hybrid CFRP/titanium bolted joints: performance assessment and application to a spacecraft payload adaptor. Compos. Sci. Technol. 70(2), 305–317 (2010)
5. Anon, (2016), Available at http://www.airbus.com/presscentre/corporate-information/key-documents/ . Accessed 20 Sep 2016