1. Bench Test Study of Piston Ring Flank and Piston Groove Interaction;Barrell,1999
2. Piston System Design for Low Emissions;Gazzard,1995
3. Piston Ring Lubrication—Part III, The Influence of Ring Dynamics and Ring Twist;Ruddy,1979
4. Emissions Impossible-The Piston & Ring Support System;Munro;SAE Paper 900590,1990