Geometric mean (English Wikipedia)

"TECHNICAL BULLETIN: Understanding Aspect Ratios" (PDF). The CinemaSource Press. 2001. Archived (PDF) from the original on 2009-09-09. Retrieved 2009-10-24.

clarku.edu

David E. Joyce, ed. (2013). "Euclid, Book VI, Proposition 13". Clark University. Retrieved 19 July 2019.

Mitchell, Douglas W. (2004). "More on spreads and non-arithmetic means". The Mathematical Gazette. 88 (511): 142–144. doi:10.1017/S0025557200174534. S2CID 168239991.
Fleming, Philip J.; Wallace, John J. (1986). "How not to lie with statistics: the correct way to summarize benchmark results". Communications of the ACM. 29 (3): 218–221. doi:10.1145/5666.5673. S2CID 1047380.
Smith, James E. (1988). "Characterizing computer performance with a single number". Communications of the ACM. 31 (10): 1202–1206. doi:10.1145/63039.63043. S2CID 10805363.

US 5956091, "Method of showing 16:9 pictures on 4:3 displays", issued September 21, 1999

MacEvoy, Bruce. "Colormaking Attributes: Measuring Light & Color". handprint.com/LS/CVS/color.html. Colorimetry. Archived from the original on 2019-07-14. Retrieved 2020-01-02.

"2.5: Geometric Mean". Statistics LibreTexts. 2019-04-20. Retrieved 2021-08-16.

"Measuring price inflation" (PDF). Government Actury's Department. March 2017. Retrieved 15 July 2023 – via gov.uk.

Mitchell, Douglas W. (2004). "More on spreads and non-arithmetic means". The Mathematical Gazette. 88 (511): 142–144. doi:10.1017/S0025557200174534. S2CID 168239991.
Fleming, Philip J.; Wallace, John J. (1986). "How not to lie with statistics: the correct way to summarize benchmark results". Communications of the ACM. 29 (3): 218–221. doi:10.1145/5666.5673. S2CID 1047380.
Smith, James E. (1988). "Characterizing computer performance with a single number". Communications of the ACM. 31 (10): 1202–1206. doi:10.1145/63039.63043. S2CID 10805363.

Matt Friehauf, Mikaela Hertel, Juan Liu, and Stacey Luong "On Compass and Straightedge Constructions: Means" (PDF). UNIVERSITY of WASHINGTON, DEPARTMENTOF MATHEMATICS. 2013. Retrieved 14 June 2018.

"Frequently Asked Questions - Human Development Reports". hdr.undp.org. Archived from the original on 2011-03-02.
"TECHNICAL BULLETIN: Understanding Aspect Ratios" (PDF). The CinemaSource Press. 2001. Archived (PDF) from the original on 2009-09-09. Retrieved 2009-10-24.
MacEvoy, Bruce. "Colormaking Attributes: Measuring Light & Color". handprint.com/LS/CVS/color.html. Colorimetry. Archived from the original on 2019-07-14. Retrieved 2020-01-02.