Song, Weizhen, and Yong He. “Design and Implementation of Non-Circular Gears Based on Target Transmission Ratio”. Bulletin of the Polish Academy of Sciences Technical Sciences 73, no. 4 (August 31, 2025): e154227. Accessed May 28, 2026. https://wydawnictwo.pan.pl/index.php/bpasts/article/view/972.