1. The flow of granular material over a moving blade;Bagster;Powder Technology,1969
2. Geometric and dynamic similarity in particle mixing;Bridgwater;Powder Technology,1968
3. Hiseman, M. J. P., Bridgwater, J., & Wilson, D. I. (1996). Positron emission particle tracking studies of granulation in a planetary mixer. The 1996 IChemE Research Event. (pp. 991–993). The Institution of Chemical Engineers.
4. Jones, J. R., & Bridgwater, J. (1997). Using positron emission particle tracking to model a mixer as a series of interconnected tanks. The 1997 Jubilee Research Event. (pp. 409–412). The Institution of Chemical Engineers.
5. A case of particle mixing in a ploughshare mixer using positron emission particle tracking;Jones;International Journal of Mineral Processing,1998