constante d'Euler
1998 / New closed-form approximations of the logarithmic constant e / Harlan J. Brothers ; John A. Knox / The Mathematical Intelligencer 20 (1998) p. 25 [doi]
2005 / On the convergence of the sequence defining Euler's number / Markus Brede / The Mathematical Intelligencer 27 (2005) p. 6 [doi]
2006 / e: The Master of All / Brian J. McCartin / The Mathematical Intelligencer 28 (2006) p. 10 [doi]