[[1] H. M. Edwards Riemann’s Zeta Function, Academic Press, New York, (1974).]Search in Google Scholar
[[2] J. Ewing, C. Foias An Interesting Serendipitous Real Number, In ‘Finite vs, Infinite: Contributions to an Eternal Dilemma’, (Edts C. Calude and G. Paun), Springer, London, 119-126, (2000).]Search in Google Scholar
[[3] W. B. Jones, W. J. Thron Continued Fractions. Analytic Theory and Applications, Encyclopedia of Mathematics and its Applications, 11, Addison-Wesley, Reading, MA, (1980).]Search in Google Scholar
[[4] N. J. A. Sloane Sequences A085846 and A085848, In ‘The On-Line Encyclopedia of Integer Sequences’.]Search in Google Scholar
[[5] Wikipedia The Sleszynski-Pringsheim Theorem, On-Line Encyclopedia, https://en.wikipedia.org/wiki/Sleszynski-Pringsheim_theorem]Search in Google Scholar
[[6] Wolfram Alpha Wolfram Alpha, Computational Knowledge Engine, https://www.wolframalpha.com/]Search in Google Scholar
[[7] Wolfram MathWorld Foias Constant, http://mathworld.wolfram.com/FoiasConstant.html]Search in Google Scholar