Pham, Minh Quang Nhat. “A Feature-Based Model for Nested Named-Entity Recognition at VLSP-2018 NER Evaluation Campaign”. <i>Journal of Computer Science and Cybernetics</i> 34, no. 4 (January 30, 2019): 311–321. Accessed December 24, 2025. http://vjs.ac.vn/jcc/article/view/13163.