The NIST Reference on Constants, Units and Uncertainty

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Searchable Bibliography on the Constants

Version history

Example of how to reference this online database:
P. J. Mohr and B. N. Taylor, (2003)
Searchable Bibliography on the Constants (version 3.0).
[Online] Available: [2021, December 8].
National Institute of Standards and Technology, Gaithersburg, MD.
Citation Form:
Author/editor (Year), Title (edition). [Type of medium] Available: URL [Access date].
Version 3.0 Release date: 28 January 2003.
487 entries added initially. In this version, new references will be added on a daily basis.
The listing of and search for institutions have been discontinued.
Initially 3293 entries + daily new additions.
Version 2.4 Release date: 23 October 2001.
288 entries added; citation format modified.
2806 entries.
Version 2.3 Release date: 27 April 2000.
293 entries added.
2518 entries.
Version 2.2 Release date: 19 March 1999.
216 entries added.
2225 entries.
Version 2.1 Release date: 07 July 1998.
Year 2000 compliance added; search query is now displayed with the results.
2009 entries.
Version 2.0 Release date: 18 February 1998.
New interface, as part of the "NIST Reference on Constants, Units, and Uncertainty." Approximate spelling and pdf formatted citations introduced.
2009 entries.
Version 1.0 Release date 8 November 1996.
1607 entries.

Database software design and programming by:
Michael Douma, Peter Mohr, and Alicia Sansonetti


Go to About this reference, or Searchable bibliography