TY  - RPRT
TI  - Geomagnetic polarity epochs and pleistocene geochronometry
AU  - A. Cox
AU  - Richard R. Doell
AU  - G. B. Dalrymple
PY  - 1963
DO  - 10.1038/1981049a0
UR  - https://pubs.usgs.gov/publication/70010633
ID  - 70010633
ER  -