@misc{indiciae65be7235ff0e,
  title = {Geophysical abstracts, 100-103, January-December 1940. Geophysical abstracts 100, January-March 1940},
  author = {W. Ayvazoglou},
  year = {1940},
  doi = {10.3133/b925a},
  url = {https://pubs.usgs.gov/publication/b925A},
  note = {Source identifier: b925A}
}