Estas son algunas de las fuentes consultadas para el artículo en portada, y demás secciones.
- Weinberg, Bennett Alan, and Bonnie K. Bealer. World of Caffeine: The Science and Culture of the World’s Most Popular Drug. Taylor & Francis, 2002.
- Schuster, Julius, and Ellen S. Mitchell. “More than Just Caffeine: Psychopharmacology of Methylxanthine Interactions with Plant-Derived Phytochemicals.” Progress in Neuro-Psychopharmacology and Biological Psychiatry, vol. 89, Mar. 2019, pp. 263–74. DOI.org (Crossref), https://doi.org/10.1016/j.pnpbp.2018.09.005.
- Pollack, Andrew. “TECHNOLOGY; Analog Values In Computing.” The New York Times, https://www.nytimes.com/1986/08/21/business/technology-analog-values-in-computing.html. Accessed 15 June 2026.
- Thompson, Clive. “How the Phonograph Changed Music Forever.” Smithsonian Magazine, https://www.smithsonianmag.com/arts-culture/phonograph-changed-music-forever-180957677/. Accessed 13 June 2026.
- Allen, Ronald L., and Duncan W. Mills. Signal Analysis: Time, Frequency, Scale, and Structure. IEEE Press, 2004.
- Basbanes, Nicholas Andrew. On Paper: The Everything of Its Two-Thousand-Year History. First Vintage Books edition, Vintage Books, 2014.
- History of HUUN | HUUN | Handmade Mayan Paper. https://huunpaper.com/about/history-of-huun/. Accessed 29 May 2026.
- Stillinger, Doug. The Klutz Book of Paper Airplanes. Klutz, 2004.
- Hartmann, William K., and Chris Impey. Astronomy: The Cosmic Journey. 5. ed, Wadsworth, 1994.
- Moché, Dinah L. Astronomy: A Self-Teaching Guide. 7th ed, John Wiley, 2009. Wiley Self-Teaching Guides 190.
- “Every Mission to the Moon, Ever.” The Planetary Society, https://www.planetary.org/space-missions/every-moon-mission. Accessed 19 April 2026.