PartIII 1981, pp. 28–30. Burke, Gerald; Poggio, Andrew (January 1981). NEC Part III: User's Guide(PDF) (Technical report). Lawrence Livermore Laboratory.
PartIII 1981, pp. 115–122. Burke, Gerald; Poggio, Andrew (January 1981). NEC Part III: User's Guide(PDF) (Technical report). Lawrence Livermore Laboratory.