1. R. Rizk, R. D. Marcus, L. S. Leung and G. E. Klinzing, Pneumatic Transport Handbook, Chapman-Hall, in press.
2. D. J. Wildman, J. M. Ekmann, M. P. Mathur, G. E. Klinzing, J. Freight Pipelines, in press.
3. The pneumatic transport of cracking catalyst in vertical risers