1. H. S. Mickley, D. F. Fairbanks, and R. D. Hawthorn, Paper No. 8 at Fourth Conference of A. I. Ch. E. and ASME on Heat Transfer, 14?17 August 1960, New York.
2. S. S. Zabrodskii, Hydrodynamics and Heat Transfer in a Fluidized Bed [in Russian], GEI, 1963.
3. R. Ernst, Chem. Ing. Techn., no. 3, 1959; no. 1, 1960.
4. A. P. Baskakov, IFZh,6, no. 11, 1963.
5. H. Carslaw and J. Jaeger, Conduction of Heat in Solids [Russian translation], Izd. Nauka, Moscow, 1964.