1. Review of Lubricants Used in the US and their Rerefining Potential, Richard J. Bigda and Associates, DE-AT 19-78 BC 30227, US Department of Energy, 1980.
2. , , , ‘Alegerea si utilizarea lubrifiantilor si combustibililor pentru motoare termice’, Editura Tehnica, Bucuresti, 1978.
3. Present Problems and Future Trends in Lubrication