@misc{indiciae46cfc07051e6,
  title = {Are there qualitative differences between face processing in photographic positive and negative?},
  author = {C H Liu and A Chaudhuri},
  year = {1998},
  doi = {10.1068/p271107},
  url = {https://pubmed.ncbi.nlm.nih.gov/10341939/},
  note = {Source identifier: 10341939}
}