TY  - RPRT
TI  - Ancient geomagnetic field intensities—I Historic and archaeological data: Sets H1–H9
AU  - Peter J. Smith
PY  - 1967
DO  - 10.1111/j.1365-246x.1967.tb03140.x
UR  - https://pubs.usgs.gov/publication/70210846
ID  - 70210846
ER  -