Nguyen, Thai, and Nguyễn Long. “A New Design of the Lobe Pump Is Based on the Meshing Principle of Elliptical Gear Pairs”. VNUHCM Journal of Engineering and Technology 4, no. 2 (April 25, 2021): 861-871. Accessed December 7, 2022. http://stdjet.scienceandtechnology.com.vn/index.php/stdjet/article/view/769.