Huỳnh, Tín Ngọc, and Kiếm Văn Hoàng. “New Methods for Calculating Trend-Based Vertex Similarity for Collaboration Recommendation”. Journal of Computer Science and Cybernetics 29, no. 4 (December 17, 2013): 338–350. Accessed December 5, 2025. https://vjs.ac.vn/jcc/article/view/4341.