Truong Cong Giang, and Nguyen Hong Thai. “Determining Conditions for the Inner Rotor Profile of a Hypogerotor Lubrication Pump”. Journal of Technical Education Science 15, no. 6 (December 31, 2020): 26–32. Accessed April 7, 2026. https://www.jte.edu.vn/index.php/jte/article/view/23.