- 1964, James Woodrow Krehbiel Harmonic Principles of Jean-Philippe Rameau and his Contemporaries, page 9, OCLC 1069357.
- The second contribution of Sauveur is the development of a more exact method of computing intervals based upon logarithmic numbers which he terms merides, eptamerides and decamerides.
- 1991, Theoria, vol. 5-6, page 26, ISSN 1554-1312.
- The interval of the fifth, it will be recalled, contains 176 eptamerides or 25 merides (plus 1 eptameride).
- 2004, J. Murray Barbour, Tuning and Temperament: A Historical Survey, page 122, ISBN 0486434060.
- The Merides were divided into seven parts called Eptamerides. For more subtle distinctions, Sauveur suggested using Decamerides, 10 of which comprised one Eptameride.
epta- + meride.