@misc{indiciaeef3d5cd69915,
  title = {Geophysical abstracts 144, January-March 1951},
  author = {M.C. Rabbitt and S.T. Vesselowsky},
  year = {1951},
  doi = {10.3133/b981a},
  url = {https://pubs.usgs.gov/publication/b981A},
  note = {Source identifier: b981A}
}