The mean-solar-time origin of Universal Time and UTC // Paper presented at the AAS/AIAA Spaceflight Mechanics Meeting, Kauai, HI, USA, March 2013. Reprinted from Advances in the Astronomical Sciences т. 148. с. 1789, 1801, 1805. Архивиран от оригинала на 2013-12-27. Посетен на 2019-02-09.
The mean-solar-time origin of Universal Time and UTC // Paper presented at the AAS/AIAA Spaceflight Mechanics Meeting, Kauai, HI, USA, March 2013. Reprinted from Advances in the Astronomical Sciences т. 148. с. 1789, 1801, 1805. Архивиран от оригинала на 2013-12-27. Посетен на 2019-02-09.