von Fritz, K. (1945). "The Discovery of Incommensurability by Hippasus of Metapontum". Annals of Mathematics. 46 (2): 242–264. doi:10.2307/1969021. JSTOR1969021.
Gauss, C. F. (1832). "Theoria residuorum biquadraticorum". Comm. Soc. Reg. Sci. Gött. Rec. 4. Reprinted in Gauss, C. F. (2011). "Theoria residuorum biquadraticorum commentatio prima". Werke. Vol. 2. Cambridge Univ. Press. pp. 65–92. doi:10.1017/CBO9781139058230.004. ISBN9781139058230. and Gauss, C. F. (2011). "Theoria residuorum biquadraticorum commentatio secunda". Werke. Vol. 2. Cambridge Univ. Press. pp. 93–148. doi:10.1017/CBO9781139058230.005. ISBN9781139058230.
Cole, A. J.; Davie, A. J. T. (1969). "A game based on the Euclidean algorithm and a winning strategy for it". Math. Gaz. 53 (386): 354–357. doi:10.2307/3612461. JSTOR3612461. S2CID125164797.
Spitznagel, E. L. (1973). "Properties of a game based on Euclid's algorithm". Math. Mag. 46 (2): 87–92. doi:10.2307/2689037. JSTOR2689037.
von Fritz, K. (1945). "The Discovery of Incommensurability by Hippasus of Metapontum". Annals of Mathematics. 46 (2): 242–264. doi:10.2307/1969021. JSTOR1969021.
Cole, A. J.; Davie, A. J. T. (1969). "A game based on the Euclidean algorithm and a winning strategy for it". Math. Gaz. 53 (386): 354–357. doi:10.2307/3612461. JSTOR3612461. S2CID125164797.
Spitznagel, E. L. (1973). "Properties of a game based on Euclid's algorithm". Math. Mag. 46 (2): 87–92. doi:10.2307/2689037. JSTOR2689037.
Cole, A. J.; Davie, A. J. T. (1969). "A game based on the Euclidean algorithm and a winning strategy for it". Math. Gaz. 53 (386): 354–357. doi:10.2307/3612461. JSTOR3612461. S2CID125164797.