Nguyen Quang Chung, Bui Thi Lan Anh, and Tran Thi Hai Ly. 2022. “THE RESULTS OF INTEGRAL OPERATION IN A RISK MODEL WITH EXCESS OF LOSS REINSURANCE”. UTEHY Journal of Applied Science and Technology 36 (December), 84-88. http://jst.utehy.edu.vn/index.php/jst/article/view/577.