1. Proc. 19th Leeds-Lyon Symp. on Tribology;Matthews,1992
2. Computer Aided Material Preselection by Uniform Standards (CAMPUS), BASF (D-6700 Ludwigshafen, Germany)
3. The Metals Handbook, American Society for Metals, Metals Park, OH
4. The Elsevier Materials Selector,1991
5. PERITUS, Matsel Systems (Cunard Building, Water Street, Liverfool, UK)