Tuyet Trinh, Pham, and Nguyen Cong Vu. “SKEW DETECTION USING THE HIERARCHICAL HOUGH TRANSFORM FOR VIETNAMESE GENERIC DOCUMENTS”. VNUHCM Journal of Science and Technology Development 3, no. 1 (January 31, 2000): 5-18. Accessed June 1, 2025. https://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/3521.