TY  - RPRT
TI  - Low intensity of the geomagnetic field in early Jurassic time
AU  - M. Perrin
AU  - M. Prevot
AU  - E. A. Mankinen
PY  - 2012
DO  - 10.1029/91jb00871
UR  - https://pubs.usgs.gov/publication/70016532
ID  - 70016532
ER  -