@article{he27,
  author       = {Wenxuan He and Mingjing Du and Wenbin Zhang},
  title        = {TFCAD: Time--Frequency Causal Anomaly Detection for Multivariate Time Series},
  journal      = {Information Processing and Management},
  volume       = {64},
  number       = {2},
  pages        = {105120},
  year         = {2027},
}