@article{JanSch17,
  title = {Detecting Confounding in Multivariate Linear Models via Spectral Analysis},
  journal = {Journal of Causal Inference},
  volume = {6},
  number = {1},
  pages = {article no. 20170013},
  year = {2017},
  slug = {jansch17},
  author = {Janzing, D. and Sch{\"o}lkopf, B.}
}