Hai, Duong Ngoc, Nguyen Thuc Khang, and Nguyen Duy Thien. “Intermittent Gaslift Flows in Vertical Pipes”. Vietnam Journal of Mechanics 29, no. 3 (September 22, 2007): 321–335. Accessed November 9, 2025. https://vjmech.vast.vn/vjmech/article/view/5543.