1. Environmental and place of employment friendly lubricants in view of legislative;Mang,1990
2. Future requirements on motor oils;Gruden;Erdöl, Erdgas, Kohle,1990
3. The role of future emission regulations on the tribology of truck diesel engines;Pfatzer,1990
4. Tribochemical lubrication oxides on Si3N4;Fischer,1989
5. Fretting wear tests of SiC;Klaffke,1987