I. J. ThompsonLawrence Livermore National Laboratory,
This chapter is based in part on
Abramowitz and Stegun (1964, Chapter 14) by M. Abramowitz.
The main references used in writing this chapter are Hull and Breit (1959),
Thompson and Barnett (1986), and Seaton (2002a). For additional
bibliographic reading see also the General References in Chapter 13.