1. D. M. McEligot, P. M. Magee and G. Leppert, Effect of large temperature gradients on convective heat transfer: the downstream region, ASME paper 64-HT-U.
2. M. E. Davenport and G. Leppert, The effect of transverse temperature gradients on the heat transfer and friction for laminar flow of gases, ASME paper 64-HT-IQ.
3. Measurements of average heat transfer coefficients for subsonic flow of air in smooth tubes at high surface and fluid temperatures;Humble;NACA report 1020,1951
4. The heat transfer characteristics of gaseous hydrogen and helium;McCarthy,1960
5. Measurement of local heat transfer coefficients for flow of hydrogen and helium in a smooth tube at high surface to fluid bulk temperature ratios;Wieland,1962