TY - JOUR T1 - Measuring lubricant films at the piston-cylinder contact: An overview of current technologies with focus on ultrasound JO - SAE Technical Papers PY - 2013/01/01 AU - Mills R AU - Avan EY AU - Dwyer-Joyce R ED - DO - DOI: 10.4271/2013-01-0294 VL - 2 Y2 - 2025/03/17 ER -