1.
Nguyen H-H, Hoang N-T, Nguyen V-T. On the tangent sets of constraint systems . HPU2. Nat. Sci. Tech [Internet]. 2022 Aug. 31 [cited 2025 Jan. 8];1(1):31-9. Available from: http://sj.hpu2.edu.vn/index.php/journal/article/view/111