TY  - RPRT
TI  - Geomagnetic dynamos in a stable core.
AU  - E Bullard
AU  - D Gubbins
PY  - 1971
DO  - 10.1038/232548b0
UR  - https://pubmed.ncbi.nlm.nih.gov/16063096/
ID  - 16063096
ER  -