1. C. Depcik, D. Assanis, A universal heat transfer correlation for intake and exhaust flows in a spark ignition internal combustion engine, SAE 2002-01-0372
2. S.D. Hires, G.L. Pochmara, An analytical study of exhaust gas heat loss in a piston engine exhaust port, SAE 760767
3. An experimental and analytical study of heat transfer in an engine exhaust port;Caton;International Journal of Heat and Mass Transfer,1981
4. G.L. Malchow, S.C. Sorenson, R.O. Buckius, Heat transfer in the straight section of an exhaust port of a spark ignition engine, SAE 790309
5. P.K. Maciejewski, R.J. Moffat, Heat transfer with very high freesteam turbulence, Department of mechanical engineering, Thesis, Stanford University, 1989