@article{article, title  = {{Evaluation of an ultrasonic method for measurement of oil film thickness in a hydraulic motor piston ring}},

 url = {{http://eprints.whiterose.ac.uk/9182/ }},

 year = {{2005}},

 month = {{1}},

 author = {{Harper P and Dwyer-Joyce RS and Sjödin U and Olofsson U}},

 doi = {{10.1016/s0167-8922(05)80032-x}},

 volume = {{48}},

 journal = {{Tribology and Interface Engineering Series}},

 pages = {{305-312}},

 note = {{Accessed on 2024/12/21}}}