References
- Chen, H., Kennedy, C. (2012). Harmonic series meets Fibonacci sequence. Coll. Math. J. 43(3): 237–243. DOI: 10.4169/college.math.j.43.3.237.
- Pólya, G. (1945). How to Solve It. Princeton: Princeton University Press.
- Pólya, G. (1954). Mathematics and Plausible Reasoning, two volumes. Princeton: Princeton University Press.