1. “An Analytical Solution for the Stress Function at the Wall of a Converging Channel”;Arnold;Powder Technology,1976
2. “Friction Factors lor Powders”;Augenstein;Powder Technology,1974
3. “Experiments on Gravity-Free Dispersion of Large Solid Spheres in a Newtonian Fluid under Shear”;Bagnold;Proc. Roy Soc. (London), Series A,1954
4. “Wear mechanisms in oscillating bearings”;Berthier;Wear,1962
5. Berthier Y. et al. gen First and third body effects in fretting-a source and sink problem D. Dowson C.H. Taylor H. Godet D. Berthe “Mechanisms and surface distress” 1966 Butterworths GB