@misc{indiciae6c2a765064ff,
  title = {Reduced dynamics need not be completely positive.},
  author = {P Pechukas},
  year = {1994},
  doi = {10.1103/physrevlett.73.1060},
  url = {https://pubmed.ncbi.nlm.nih.gov/10057614/},
  note = {Source identifier: 10057614}
}