@misc{indiciae737f21aa736e,
  title = {Response to "Two important invariant identities"},
  author = {I Jack and L Parker},
  year = {1987},
  doi = {10.1103/physrevd.35.771},
  url = {https://pubmed.ncbi.nlm.nih.gov/9957720/},
  note = {Source identifier: 9957720}
}