Chengfang Xu, Bin Zhuang, Zhaoxin Wu, and Liyong Ren. “Single-Fiber Based Endoscopic Imaging: Methods and Characteristics”. Journal of Material Science and Technology Research 6 (October 31, 2019):  120–122. Accessed November 24, 2024. https://zealpress.com/jms/index.php/jmstr/article/view/120.