@misc{indiciae1db99013d82c,
  title = {Geophysical abstracts 87, July-December 1936},
  author = {W. Ayvazoglou},
  year = {1937},
  doi = {10.3133/b887},
  url = {https://pubs.usgs.gov/publication/b887},
  note = {Source identifier: b887}
}