@misc{indiciaebdc83939eac9,
  title = {Varying constants.},
  author = {John D Barrow},
  year = {2005},
  doi = {10.1098/rsta.2005.1634},
  url = {https://pubmed.ncbi.nlm.nih.gov/16147502/},
  note = {Source identifier: 16147502}
}