1. Bunk, W. and Hausner, H. (1986), “Ceramics materials and components for engines”,Proceedings of the Second International Symposium, Lubeck‐Travemunde, Germany, 14‐17 April.
2. Limited life engines for UAVs
3. Dorrington, G.E. (2004), “Performance of non‐rigid airships operating in the neutral buoyancy condition”,The Aeronautical Journal, Vol. 111 No. 1116.
4. Development of an airship for tropical rain forest canopy exploration
5. Dworak, W. and Fingerle, D. (1987), “Ceramic materials for engines”,Journal of Materials Science, Vol. 86, pp. 170‐80.