1. Graphite lubrication;Savage;J. Appl. Phys.,1948
2. The tribology of sputtered molybdenum disulphide;Roberts,1987
3. Tribological properties of polymer films and solid bodies in a vacuum environment;Fusaro;NASA TM 88966,1987
4. The friction and lubrication of solids;Bowden,1958
5. Ultra-low-friction films of MoS2 for space applications;Roberts,1989