H. Nguyen, N. Nguyen, H. Doan, Z. Ahmadi, T. Doan, and L. Jiang. Proceedings of the ACM Joint European Software Engineering Conference and Symposium on the Foundations of Software Engineering, New York, NY, USA, Association for Computing Machinery, (November 2022)
S. Fortunato, and C. Castellano. (2007)cite arxiv:0712.2716
Comment: 42 pages, 13 figures. Chapter of Springer's Encyclopedia of
Complexity and System Science.