1. O. E. Potter, ?Mixing,? in: Fluidization, J. F. Davidson and D. Harrison (eds.), Academic Press, London-New York (1971).
2. V. A. Borodulya, ?The process of mixing of the solid phase in a fluidized bed,? Author's Abstract of Candidate's Dissertation, Engineering Sciences, Minsk (1963).
3. Y. Mori and K. Nakamura, ?Solid mixing in a fluidized bed,? Kagaku Kogaku, Chem. Eng., Jpn.,29, No. 11, 868?875 (1965).
4. V. A. Borodulya, S. S. Zabrodskii, A. I. Tamarin, and V. I. Yuditskii, ?Hydrodynamics and thermal diffusivity of a fluidized bed,? in: Heat and Mass Transfer [in Russian], Vol. 5, Énergiya, Moscow-Leningrad (1966), pp. 75?85.
5. J. D. Gabor, ?Lateral solids mixing in fluidized-packed beds,? AIChE J.,10, No. 3, 345?350 (1964).