* theory.html (Accuracy of the tz database): Update citation of Morrison, Stephenson et al to their 2020 addendum. --- theory.html | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/theory.html b/theory.html index 458d64ac..e9928e30 100644 --- a/theory.html +++ b/theory.html @@ -832,10 +832,10 @@ href="https://www.dissentmagazine.org/blog/booked-a-global-history-of-time-vanes title="International System of Units">SI</abbr></a> seconds to historical <a href="https://en.wikipedia.org/wiki/Solar_time">solar time</a> to more than about one-hour accuracy. - See: Stephenson FR, Morrison LV, Hohenkerk CY. - <a href="https://dx.doi.org/10.1098/rspa.2016.0404">Measurement of - the Earth's rotation: 720 BC to AD 2015</a>. - <cite>Proc Royal Soc A</cite>. 2016;472:20160404. + See: Morrison LV, Stephenson FR, Hohenkerk CY, Zawilski M. + <a href="https://doi.org/10.1098/rspa.2020.0776">Addendum 2020 + to 'Measurement of the Earth's rotation: 720 BC to AD 2015'</a>. + <cite>Proc Royal Soc A</cite>. 2021;477:20200776. Also see: Espenak F. <a href="https://eclipse.gsfc.nasa.gov/SEhelp/uncertainty2004.html">Uncertainty in Delta T (ΔT)</a>. -- 2.50.1