@misc{indiciae45f3295182f9,
  title = {Observational limits on the time evolution of extra spatial dimensions.},
  author = {JD Barrow},
  year = {1987},
  doi = {10.1103/physrevd.35.1805},
  url = {https://pubmed.ncbi.nlm.nih.gov/9957856/},
  note = {Source identifier: 9957856}
}