H. C. Chan, \pi in terms of \phi: Some Recent Developments, Proceedings of the Twelfth International Conference in Fibonacci Numbers, (2010): 17-25. Read Pi in terms of Phi (Fib Conf 2006).

H. C. Chan, \pi in terms of \phi, Fibonacci Quart. 44 (2006): 141–144. Read Pi in terms of phi.

H. C. Chan, More Formulas for \pi, Amer. Math. Monthly 113: 452-455. Read More formulas for Pi.

H. C. Chan, Machin-type formulas expressing \pi in terms of \phi, Fibonacci Quart. 46/47 (2008/2009): 32–37 Read Pi via Machin.

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