See Hull and Breit (1959, pp. 413–416).
For (33.7.1) see also Lowan and Horenstein (1942), with change of
variable in the integral that follows Eq. (8).
For (33.7.2) see also Hoisington and Breit (1938).
For (33.7.3) see also Bloch et al. (1950).
For (33.7.4) see also Newton (1952).