A simple proof that $\pi$ is irrational
Ivan Niven
Source: Bull. Amer. Math. Soc. Volume 53, Number 6 (1947), 509.
Full-text: Open access
Links and Identifiers
Permanent link to this document: http://projecteuclid.org/euclid.bams/1183510788
Mathematical Reviews number (MathSciNet):
MR0021013
Zentralblatt MATH identifier:
0037.31404
