1. Average flow model for determining effects of 3-dimensional roughness on partial hydrodynamic lubrication;Patir;J. Lubr. Tech. Trans. ASME,1978
2. Behavior of elastic-plastic rough surface contacts as affected by surface topography, load, and material hardness;Lee;Tribol. Trans.,1996
3. Sulla Portata Delle Pompe ad Ingranaggi;Bonacini,1996
4. The theoretical flow ripple of an external gear pump;Manring;J. Dyn. Syst. Meas. Control Trans. ASME,2003
5. Hydrostatic Pumps and Motors, Principles, Designs, Performance, Modelling, Analysis, Control and Testing;Ivantysyn,2001