@misc{indiciaead8ea273fb1f,
  title = {Positive-gravitational-energy proof from complex variables?},
  author = {EW Mielke},
  year = {1990},
  doi = {10.1103/physrevd.42.3388},
  url = {https://pubmed.ncbi.nlm.nih.gov/10012739/},
  note = {Source identifier: 10012739}
}