Mai Huong, Hoang, and Nguyen Thi Nhung. “DIFFERENTIAL VARIATIONAL INEQUALITIES VIA THE EXTENDED LASALLE’S INVARIANCE PRINCIPLE APPROACH”. Journal of Science Natural Science 70, no. 4 (December 30, 2025): 32–42. Accessed January 9, 2026. https://hnuejs.edu.vn/ns/article/view/1135.