1. Lubrication in Vacuum by Vaporized Thin Metallic Films
2. The Lubrication by Thin Metallic Films and the Action of Bearing Metals
3. Lubricating properties of lead films on copper
4. T. Spalvins and D. Buckley, “Vapor deposited thin gold films as lubricants in vacuum” NASA TN D-3040(1965).
5. T. Spalvins Proc. 2nd Int. Conf. on Solid Lubrication, ASLE, Park Ridge, Illinois (1978), 109.