Abrunho, J., Kurniadi Angdinata, D., Kim, H. M., Pan, Y., & Xing, X. W. (2018). An introduction to finite projective planes [PDF]. Imperial College London. https://multramate.github.io/projects/fpp/main.pdf
Chen, O., & Han, N. (2024, May 19). The math behind “Spot It!” [PDF]. Massachusetts Institute of Technology PRIMES Circle. https://math.mit.edu/research/highschool/primes/materials/2024/May/6-5%20Katherine.pdf
Dietz, D. A. Anatomy of a finite projective plane [Interactive applet]. https://www.donnadietz.com/PG/anatomy.html
McRobbie, Linda Rodriguez. (2018, December 12). The mind-bending math behind Spot It!, the beloved family card game. Smithsonian Magazine. https://www.smithsonianmag.com/science-nature/math-card-game-spot-it-180970873/
Parker, M. [standupmaths]. (2018, November 2). How does Dobble (Spot It!) work? [Video]. YouTube. https://www.youtube.com/watch?v=VTDKqW_GLkw
Polster, B. (2016, February 18). Finite projective planes and the math of Spot It! Puzzlewocky. https://www.puzzlewocky.com/games/the-math-of-spot-it/
Science Mom & Math Dad. Make Spot It! with finite projective planes [PDF]. https://www.science.mom/images/Worksheets/ScienceWorksheets/SpotIt.pdf
Wakeham, D. (2021, January 10). Generalising Spot It! [Blog post]. https://hapax.github.io/mathematics/spotit/