@article{article, title = {{Ultrasound for the non-invasive measurement of internal combustion engine piston ring oil films}}, publisher = {{SAGE Publications}}, url = {{http://eprints.whiterose.ac.uk/86931/ }}, year = {{2015}}, month = {{2}}, author = {{Mills R and Vail JR and Dwyer-Joyce R}}, doi = {{10.1177/1350650114552538}}, volume = {{229}}, journal = {{Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology}}, issue = {{2}}, pages = {{207-215}}, note = {{Accessed on 2025/08/20}}}