Nguyen, Bich Huy, and Bùi Thế Quân. “EXISTENCE OF NONTRIVIAL NONNEGATIVE WEAK SOLUTIONS FOR A CLASS OF LOGISTIC-TYPE SYSTEMS”. HCMUE Journal of Science, vol. 22, no. 3, Mar. 2025, https://journal.hcmue.edu.vn/index.php/hcmuejos/article/view/4505.