Luo, Chaojun, Zhangxu Liu, Yongjun Qiu, Zhangjian Wang, and Dugang Kang. “Analysis of Prevention and Control Strategies for Safe Operation of Old Elevators Based on Evaluation Data Statistics”. Highlights in Science, Engineering and Technology 114 (October 31, 2024): 253–257. Accessed December 8, 2024. https://drpress.org/ojs/index.php/HSET/article/view/26805.