International Geomagnetic Reference Field 1965.0: IAGA Commission 2 Working Group 4, Analysis of the geomagnetic field
- 15 August 1969
- journal article
- Published by American Geophysical Union (AGU) in Journal of Geophysical Research
- Vol. 74 (17), 4407-4408
- https://doi.org/10.1029/jb074i017p04407