@misc{indiciaeecaac94a87fd,
  title = {Index to geophysical abstracts 180-183, 1960},
  author = {J. W. Clarke and D.B. Vitaliano and V.S. Neuschel and and others},
  year = {1961},
  doi = {10.3133/b1116e},
  url = {https://pubs.usgs.gov/publication/b1116E},
  note = {Source identifier: b1116E}
}