1. J.S.R. Chisholm, Proceedings of Third International Colloquium on Advanced Computing Methods in Theoretical Physics (Marseille), ed. A. Visconti (1974), C-XIV-1.
2. J.S.R. Chisholm, Math. Comp. 27 (1973), 841.
3. J.L. Gammel, “Padé Approximants and Their Applications”, ed. P.R. Graves-Morris (Academic Press, 1973), C. Critchfield, Rocky Mountain J. Math. 4, 2 (1974).
4. J. Nuttall, J. Math. Anal. Applic. 31 (1970), 147.
5. A. K. Common & P. R. Graves-Morris, J. Inst. Math. Applic. 13 (1974), 229.