Quí, Nguyễn Thành. “NONLINEAR PERTURBATIONS OF POLYHEDRAL NORMAL CONE MAPPINGS AND AFFINE VARIATIONAL INEQUALITIES”. Dalat University Journal of Science 2, no. 3 (September 30, 2012): 47–61. Accessed July 16, 2026. https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/208.