1. M. V. Martialis, Epigrams, Book 2 Number 77 (A.D. 85).
2. Proc. Int. Conf. Tribology in the 80's, NASA Lewis Research Center;Tabor,1983
3. Deformation-Mechanism Maps. The Plasticity and Creep of Metals and Ceramics;Frost,1982
4. Wear of metals at high sliding speeds