1. Tables of Lagrangian Interpolation Coefficients(Columbia University Press, New York, 1944).
2. T. M. MacRobert,Spherical Harmonics(Dover Publications, New York, 1948), p. 106.
3. P. M. Morse and H. Feshbach,Methods of Theoretical Physics(McGraw-Hill Book Company, Inc., New York, 1953), p. 1466.
4. Values of JL+12(3) and JL+12(6) from E. Janhke and F. Emde,Tables of Functions(Dover Publications, New York, 1943).