1. P. Argüelles, J. Lumsden, M. Bischoff, D. Ranque, P. Busquin, S. Rasmussen, B.A.C. Droste, P. Reutlinger, R. Evans, R. Robins, W. Kröll, H. Terho, J.-L. Lagardère, A. Wittlöv, and A. Lina: European Aeronautics: A Vision for 2020 (Advisory Council for Aviation Research and Innovation in Europe). https://www.acare4europe.org/sites/acare4europe.org/files/document/Vision%202020_0.pdf. Accessed 10 Jan 2020.
2. M. Darecki, C. Edelstenne, T. Enders, E. Fernandez, P. Hartman, J.-P. Herteman, M. Kerkloh, I. King, P. Ky, M. Mathieu, G. Orsi, G. Schotman, C. Smith, and J.-D. Worner: Flightpath 2050 Europe’s vision for aviation (European Commission). https://ec.europa.eu/transport/sites/transport/files/modes/air/doc/flightpath2050.pdf, https://doi.org/10.2777/50266. Accessed 10 Jan 2020.
3. R.C. Reed, A. Mottura, and D.J. Crudden: in Superalloys 2016, M. Hardy, E. Huron, U. Glatzel, B. Griffin, B. Lewis, C. Rae, V. Seetharaman, and S. Tin, eds., TMS, Warrendale, PA, USA, 2016, pp. 15–23.
4. R.J. Mitchell, J.A. Lemsky, R. Ramanathan, H.Y. Li, K.M. Perkins, and L.D. Connor: in Superalloys 2008, R.C. Reed, K.A. Green, P. Caron, T. Gabb, M.G. Fahrmann, E.S. Huron, and S.A. Woodard, eds., TMS, Warrendale, PA, USA, 2008, pp. 347–56.
5. D. Anderson: Fuel Conservation Operational Procedures for Environmental Performance (International Civil Aviation Organisation) https://www.icao.int/Meetings/EnvironmentalWorkshops/Documents/ICAO-TransportCanada-2006/Anderson_ops.pdf. Accessed 10 Jan 2020.