MathSciNet bibliographic data MR1834702 11J72 (11J04) Huylebrouck, Dirk Similarities in irrationality proofs for $\pi$$\pi$, $\ln 2$$\ln 2$, $\zeta(2)$$\zeta(2)$, and $\zeta(3)$$\zeta(3)$. Amer. Math. Monthly 108 (2001), no. 3, 222–231. Article

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