Pham, Trong Hoa. “Hydrostatic Pressure Distribution of Oil Lubrication Film for Internal Gear Motors and Pumps: Solution of Resistance Network and Compare to CFD”. JST: Smart Systems and Devices, vol. 31, no. 1, May 2021, pp. 100-7, doi:10.51316/jst.150.ssad.2021.31.1.13.