Shaojing Shao, Yongbin Zhang, Xuedong Jiang, and Pingjun Pang. “Study on Multiscale Hydrodynamic Step Bearing”. Journal of Modern Mechanical Engineering and Technology 7 (June 25, 2020):  66–73. Accessed December 22, 2024. https://zealpress.com/jms/index.php/jmmet/article/view/308.