@misc{indiciaeddc97dd79d47,
  title = {Geophysical abstracts, 92-95, January-December 1938. Geophysical abstracts 93, April-June 1938},
  author = {W. Ayzavoglou},
  year = {1939},
  doi = {10.3133/b909b},
  url = {https://pubs.usgs.gov/publication/b909B},
  note = {Source identifier: b909B}
}