@misc{indiciaea6fefa8e9a70,
  title = {Old Seismic bulletins to 1920: A collective heritage from early seismologists},
  author = {Johannes Schweitzer and W.H.K. Lee},
  year = {2003},
  doi = {10.1016/s0074-6142(03)80300-5},
  url = {https://pubs.usgs.gov/publication/70206327},
  note = {Source identifier: 70206327}
}