1. Long-term advanced propulsion concepts and technologies. https://cordis.europa.eu/project/id/12282
2. Long-term advanced propulsion concepts and technologies II. https://cordis.europa.eu/project/id/211485
3. Stratospheric flying opportunities for high-speed propulsion concepts. https://cordis.europa.eu/project/id/769246
4. MDO and REgulations for low-boom and environmentally sustainable supersonic aviation. https://cordis.europa.eu/project/id/101006856
5. Gorden Y, Rigmant V (2005) Tupolev Tu-144: Russia’s concorde. Red Star, vol 24. Midland Publishing