@article{WPCZH22,
  author        = {K. Wang and J. Pang and D. Chen and Y. Zhao and D. Hunag and C. Chen and W. Han},
  title         = {A large-scale empirical analysis of ransomware activities in {B}itcoin},
  journal       = {ACM Transactions on the Web},
  year          = {2022},
  volume        = {16},
  number        = {2},
  pages         = {7:1-7:29}
}