1. The friction of flexible packings;Denny,1950
2. Research on aircraft hydraulic packings;McCuiston;Quart. Trans. Soc. Automotive Engrs,1948
3. Contribution to Discussion;Clayton,1950
4. Frictional properties of rubber;Roth;J. Research Natl. Bur. Standards,1942
5. The influence of load and surface roughness on the friction of rubber-like materials;Denny,1955