doi dblp Citation cascade and the evolution of topic relevance Chao Min | Qingyu Chen | Erjia Yan | Yi Bu | Jianjun Sun 2021 Volume 72 Issue 1
doi dblp Innovation or imitation: The diffusion of citations Chao Min | Ying Ding | Jiang Li | Yi Bu | Lei Pei | Jianjun Sun 2018 Volume 69 Issue 10