TY  - RPRT
TI  - Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: January 1990
AU  - John B. Townshend
AU  - Richard V. O’Connell
AU  - Carol Ann Varner
PY  - 1990
DO  - 10.3133/ofr90300a
UR  - https://pubs.usgs.gov/publication/ofr90300A
ID  - ofr90300A
ER  -