1. M. Abramowitz and I. A. Stegun, Handbook of Mathematical Functions, with Formulas,
Graphs, and Mathematical Tables (Dover, New York, 1972).
2. S. R. Finch, Mathematical Constants (Cambridge Univ. Press, New York, 2003).
3. F. W. Olver, D. W. Lozier, R. F. Boisvert, and C. W. Clark, The NIST Handbook of Mathematical Functions (Cambridge Univ. Press, New York, 2010).
4. D. Cvijovic and J. Klinowski, J. Comput. Appl. Math. 142, 435–439 (2002).
5. V. V. Zudilin, Izv. Math. 66 (3), 489–542 (2002).