1. Notes on iterative processes;Hartree, D. R.;Proc. Cambridge Philos. Soc.,1949
2. On certain formulae for numerical approximation;Richmond, H. W.;J. London Math. Soc.,1944
3. Harvard University, Tables of the Bessel Functions of the First Kind of Orders Zero and One, v. 3, Harvard Univ. Press, Cambridge, 1947.
4. Columbia University, Table of the Bessel Functions 𝑌₀(𝑧) and 𝑌₁(𝑧) for Complex Arguments, Columbia Univ. Press, New York, 1950.
5. Columbia University, Table of the Bessel Functions 𝐽₀(𝑧) and 𝐽₁(𝑧) for Complex Arguments, Columbia Univ. Press, New York, 1943.