Huy, Ngô Hoàng, and Ngô Quốc Tạo. “Recognizing Some Geometrical Objects from a Discrete Set of Polygons”. Journal of Computer Science and Cybernetics 14, no. 2 (March 15, 2016): 33–41. Accessed May 10, 2024. https://vjs.ac.vn/index.php/jcc/article/view/7897.