zhang, zhe, Jialin Tian, Chenghang Liu, and Changqing Xiong. “Study of Fatigue Characteristics of Key Welds of Modular Drilling Derricks”. CT&F - Ciencia, Tecnología y Futuro 13, no. 1 (June 30, 2023): 75–85. Accessed June 7, 2025. https://ctyf.journal.ecopetrol.com.co/index.php/ctyf/article/view/668.