1. Tribological behaviour of fine ceramics in screening tests and applications up to 1000°C;Woydt;Metall,1989
2. H. Czichos M. Woydt 1988 237 246
3. 1988 415 421
4. M. Woydt K.-H. Habig Technisch-physikalische Grundlagen zum tribologischen Verhalten keramischer Werkstoffe 1988
5. Silicon nitride rolling bearings for extreme operating conditions;Bhushan;ASLE Transactions,1982