1. H. L. Green and W. R. Lane, ?Particulate Clouds, Dust, Smokes and Mist? 2nd Edn. (Spon, London, 1964).
2. N. Dombrowski and R. P. Fraser, Phil. Trans. 247 A (1954) 101.
3. C. J. Clark and N. Dombrowski, Aerosol Sci. 2 (1971) 173.
4. S. Nukiyama and Y. Tanasawa, Trans. Soc. Mech. Eng. Japan 5 (1939) 62, 68.
5. M. D. Bitron, Ind. Eng. Chem. 47 (1955) 23.