1. Failure cause analysis, turbine bearing systems,1981
2. Foreign object damage in journal bearings;Elwell;Lubr. Eng.,1978
3. Effects of solid inclusions in sleeve-bearing oil supply;Rylander;Mech. Eng.,1952
4. Filtration for wear control;Needleman,1980
5. Effect of abrasive in lubricant;McKee;SAE J.,1927