[16] Heintz, R. P., "Free-Piston Engine Pump", U.S. Patent N0.4369021, Patent Issued January 18, (1983).
[17] Kankam, M. D., Rauch, J. S., "Controllability of Free-Piston Stirling Engine/Linear Altenator Driving a Dynamic Load", 28th IECEC, August (1993). Atlanta, SAE, Warrendale, PA, USA.
[18] Carelli. J. E. et al., "Update on Results of SPRE Testing at NASA Lewis", 28th IECEC, (1993) , Atlanta, SAE, Warrendale, PA, USA.
[19] Chomiak, J., Liljenfeldt, G., "Steam Injected Diesel (STID) Engine:Some Basic Considera-tions", ENSUS 2000, Environmental Sustaina-bility conference, Newcastle, (2000).
[20] Gillespie, D. A, Mobbs, S. G., "The Rolls-Royce/Allen 5000 Series Engine Control of NOx with Electronic Fuel Injection",MarPower '99, (1999), University of Newcastle, Institute of Marine Engineers.
[21] Paro, D., "Engine Technology for the Next Millennium", Propulsion 2000, (2000) , Institute of Marine Engineers, London.
[22] American Scientific, "The Future of Fuel Cells", American Scientific, (1999)
[23] Allen, S., Ashey. E., Gore. D.,Woerner, J., Cervi. M., "Marine Applications of Fuel Cells", Naval Engineers Journal, January, (1998).
[24] Hengst S., Boonstra, H., Ferrao, P., "Techno-logy shifts in power generation". ENSUS 2000, Environmental Sustainability conference, Newcastle, (2000).
[25] Lloyd. G., "Gas turbines for Commercial Pro-pulsion",Propulsion 2000, (2000) , Institute of Marine Engineers, London.
[26] Lund, Technical Report 1994-1997, Combustion Centre, (1998) , Technical University of Lund, Sweden.
[27] Doerry, N., Robey. H.. Petry, C., "Powering the Future with the Integrated Power System", Naval Engineers Journal, May, (1996).
