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Astronomical almanac for the year 2001. (2000). U.S. Nautical Almanac Office and Her Majesty's Nautical Almanac Office. ISBN 9780117728431.
Astronomical Almanac Online （页面存档备份，存于）. (2008). U.S. Nautical Almanac Office and Her Majesty's Nautical Almanac Office.
Chi, A. R. (December 1979). "A Grouped Binary Time Code for Telemetry and Space Application" （页面存档备份，存于） (NASA Technical Memorandum 80606). Retrieved from NASA Technical Reports Server April 24, 2015.
"CS 1063 Introduction to Programming: Explanation of Julian Day Number Calculation." （页面存档备份，存于） (2011). Computer Science Department, University of Texas at San Antonio.
Dershowitz, N. & Reingold, E. M. (2008). Calendrical Calculations 3rd ed. Cambridge University Press.  ISBN 978-0-521-70238-6.
Digital Equipment Corporation. Why is Wednesday, November 17, 1858, the base time for VAX/VMS? （页面存档备份，存于） Modified Julian Day explanation
Edwards, B B, Smith, John Pye and ben Uziel, Jonathan, The Popular Bible Educator, Vol. 1, Biblical Chronology.   Explanation of Technicalities.   John Cassell, London 1853.
Furness, C. E. (1915). An introduction to the study of variable stars. （页面存档备份，存于） Boston: Houghton-Mifflin. Vassar Semi-Centennial Series.
HORIZONS System （页面存档备份，存于）. (April 4, 2013). NASA.
Ideler, Handbuch der mathematischen und technischen Chronologie, vol. 1, Berlin 1825, available at  （页面存档备份，存于） (in German).
Information Bulletin No. 81 （页面存档备份，存于）. (January 1998). International Astronomical Union.
Julian Date Converter （页面存档备份，存于） (March 20, 2013). US Naval Observatory. Retrieved September 16, 2013.
Kempler, Steve. (2011). Day of Year Calendar. Goddard Earth Sciences Data and Information Services Center.
McCarthy, D. & Guinot, B. (2013). Time. In S. E. Urban & P. K. Seidelmann, eds. Explanatory Supplement to the Astronomical Almanac, 3rd ed. (pp. 76–104). Mill Valley, Calif.: University Science Books. ISBN 978-1-89138-985-6
Meeus Jean. Astronomical Algorithms (1998), 2nd ed, ISBN 0-943396-61-1
Moyer, Gordon. (April 1981). "The Origin of the Julian Day System," Sky and Telescope 61 311−313.
Noerdlinger, P. (April 1995 revised May 1996). Metadata Issues in the EOSDIS Science Data Processing Tools for Time Transformations and Geolocation （页面存档备份，存于）. NASA Goddard Space Flight Center.
Ohms, B. G. (1986). Computer processing of dates outside the twentieth century （页面存档备份，存于）. IBM Systems Journal 25, 244–251. doi:10.1147/sj.252.0244
Ransom, D. H. Jr. (c. 1988) ASTROCLK Astronomical Clock and Celestial Tracking Program pages 69–143 （页面存档备份，存于）, "Dates and the Gregorian calendar" pages 106–111. Retrieved September 10, 2009.
"Resolution B1" （页面存档备份，存于）. (1997). XXIIIrd General Assembly (Kyoto, Japan). International Astronomical Union, p. 7.
Richards, E. G. (2013). Calendars. In S. E. Urban & P. K. Seidelmann, eds. Explanatory Supplement to the Astronomical Almanac, 3rd ed. (pp. 585–624). Mill Valley, Calif.: University Science Books. ISBN 978-1-89138-985-6
"SPD Toolkit Time Notes" （页面存档备份，存于）. (July 21, 2014). In SPD Toolkit / HDF-EOS （页面存档备份，存于）. NASA.
Seidelmann, P. Kenneth (ed.) (1992). Explanatory Supplement to the Astronomical Almanac （页面存档备份，存于） pages 55 & 603–606. University Science Books, ISBN 0-935702-68-7.
Strous, L. (2007) Astronomy Answers: Julian Day Number. （页面存档备份，存于） Astronomical Institute / Utrecht University.
Tøndering, Claus. (2014). "The Julian Period" （页面存档备份，存于） in Frequently Asked Questions about Calendars. author.
US Naval Observatory. (2005, last updated July 2, 2011). Multiyear Interactive Computer Almanac 1800–2050 (ver. 2.2.2). Richmond VA: Willmann-Bell, ISBN 0-943396-84-0.
Winkler, M. R. (n. d.). "Modified Julian Date". US Naval Observatory. Retrieved April 24, 2015.