1. Bartz, J.W. (2001), “History of tribology – the bridge between the classical antiquity and the 21st century”, Book of Plenary and Session Key Papers from the 2nd World Tribology Congress, 3‐7 September 2001, Vienna, Austria, pp. 3‐12.
2. Jost, H.P. (1995), “Tribology: the first 25 years and beyond: achievements, shortcomings and future tasks”, Journal of the BTA, Nos 3‐4.
3. Meneve, J., Helle, A., Holmberg, K., Vizintin, J., Igartua, A., Gee, G.M. and Santner, E. (2001), “An initiative at the hub of European tribology activity”, Book of Plenary and Session Key Papers from the 2nd World Tribology Congress, 3‐7 September 2001, The Virtual Tribology Institute ‐‐ VTI, Vienna, Austria, pp. 59‐64.
4. Troyer, D. and Fitch, J. (2001), “Skills standards development and competency assurance for machinery lubrication technicians ‐‐ new initiatives by the international council for machinery lubrication”, Book of Plenary and Session Key papers from the 2nd World Tribology Congress, 3‐7 September 2001, Vienna, Austria, pp. 245‐50.