@misc{indiciae671c71a234b3,
  title = {Geophysical abstracts 108, January-March 1942},
  author = {W. Ayvazoglou},
  year = {1942},
  doi = {10.3133/b939a},
  url = {https://pubs.usgs.gov/publication/b939A},
  note = {Source identifier: b939A}
}