@misc{indiciae1d8c8c801b37,
  title = {Sidereal variations deep underground in Tasmania},
  author = {Humble, J. E. and Fenton, A. G. and Fenton, K. B.},
  year = {1985},
  url = {https://ntrs.nasa.gov/citations/19850026689},
  note = {Source identifier: 19850026689}
}