@misc{indiciae79c28f790367,
  title = {The principles and the PEA.},
  author = {J M Christenson},
  year = {1995},
  doi = {10.1111/j.1553-2712.1995.tb03141.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/8597910/},
  note = {Source identifier: 8597910}
}