1. A general expression for the correlation of rates of transfer and other phenomena;Churchill;A.I.Ch.E. Jl,1972
2. Advances in free convection;Ede,1967
3. Effect of pressure upon natural convection in air;Saunders,1936
4. The transmission of heat by radiation and convection;Griffiths,1922
5. The basic laws and data of heat transmission free convection;King;Mech. Engng,1932