Copies of various academic papers related to lubrication: Kajdas, C.Z., On a negative-ion concept of EP action of organo-sulfur compounds, Presented as an American Society of Lubrication Engineers paper at the ASLE/ASME Lubrication Conference in Harford, Connecticut, October 18-20, 1983, Preprint No. 83-LC-2B-6, ASLE PREPRINT, 2 copies;
Tribochemistry of some ferrocene derivatives - photocopy of 3 pages of typed article, undated;
Chemical diagrams and notes on two pieces of paper.