1. Ellis, H. S. and Kruyer, Jan., “The Pipeline Flow of Capsules, Part 10, Empirical Pressure and Velocity Correlations for Cylindrical Capsules conveyed in Pipelines up to 4 inches in Diameter.” Paper C2, Hydrotransport 1, Proceedings 1970. BHRA Fluid Engineering, Cranfield, Bedford, England.
2. Round, G. F., Private Communication. 1968.
3. Capsule Pipeline Flow - a Theoretical Study;Garg;Thermodyn. & Fluid Mech. Conv., Inst. of Mech. Eng., London, England. Proceedings,196970
4. The pipeline flow of capsules. Part 9
5. Epstein, N., Bjanchi, R. J., Lee, V. T. Y. and Bentwich, M., “Eccentric Laminar Couette Flow of Long Cylindrical Capsules.” 4th Joint AIChE-CSChE Conference, Vancouver, B.C., Sept. 9,12, 1973.