@misc{indiciae4c9e20db12ef,
  title = {Geophysical abstracts 107, October-December 1941},
  author = {W. Ayvazoglou},
  year = {1942},
  doi = {10.3133/b932d},
  url = {https://pubs.usgs.gov/publication/b932D},
  note = {Source identifier: b932D}
}