@misc{indiciae2deea570dc7a,
  title = {The reversal sign.},
  author = {G Vergote and H Vandeperre and R De Man},
  year = {1992},
  doi = {10.1007/bf00596339},
  url = {https://pubmed.ncbi.nlm.nih.gov/1630613/},
  note = {Source identifier: 1630613}
}