1. Lubricants and related products;Klamman,1983
2. Reduction friction losses in automobile engines;Hosni;Tribol. Int.,1984
3. Development of a reciprocating test rig for tribological studies of piston ring engine moving components—Part I: rig design and piston ring friction coefficients measuring method;Ting;Tribology of engines and engine oils. SAE International,1993
4. Tribological behavior of advanced material pairs of piston-ring/cylinder-liner;Albert;Trans. SAE,1996
5. Emission reduction for small utility two-stroke engine;Tamba;Trans. SAE,1995