<ref name=gjl156_2_363>{{citation | display-authors=1 | last1=Nimmo | first1=F. | last2=Price | first2=G. D. | last3=Brodholt | first3=J. | last4=Gubbins | first4=D. | title=The influence of potassium on core and geodynamo evolution | journal=Geophysical Journal International | volume=156 | issue=2 | pages=363–76 | date=februar 2004 | doi=10.1111/j.1365-246X.2003.02157.x | bibcode=2003EAEJA.....1807N | url=http://eprints.whiterose.ac.uk/437/1/gubbinsd12.pdf | access-date=2018-05-16 | archive-date=31. juli 2020 | archive-url=https://web.archive.org/web/20200731215113/http://eprints.whiterose.ac.uk/437/1/gubbinsd12.pdf | url-status=live }}</ref>
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