7.34 References and Further Reading
The library follows the conventions of Abramowitz & Stegun where
possible,
-  Abramowitz & Stegun (eds.), Handbook of Mathematical Functions
The following papers contain information on the algorithms used 
to compute the special functions,
-  Allan J. MacLeod, MISCFUN: A software package to compute uncommon
special functions.  ACM Trans. Math. Soft., vol. 22,
1996, 288–301
-  G.N. Watson, A Treatise on the Theory of Bessel Functions,
2nd Edition (Cambridge University Press, 1944).
-  G. Nemeth, Mathematical Approximations of Special Functions,
Nova Science Publishers, ISBN 1-56072-052-2
-  B.C. Carlson, Special Functions of Applied Mathematics (1977)
-  N. M. Temme, Special Functions: An Introduction to the Classical
Functions of Mathematical Physics (1996), ISBN 978-0471113133.
-  W.J. Thompson, Atlas for Computing Mathematical Functions, John Wiley & Sons,
New York (1997).
-  Y.Y. Luke, Algorithms for the Computation of Mathematical Functions, Academic
Press, New York (1977).
-  S. A. Holmes and W. E. Featherstone, A unified approach to the Clenshaw
summation and the recursive computation of very high degree and order
normalised associated Legendre functions, Journal of Geodesy, 76,
pg. 279-299, 2002.