1. C. E. Baum, Scattering, Reciprocity, Symmetry, SEM, and EEM, Interaction Note 475, May 1989.
2. C. E. Baum, SEM Backscattering, Interaction Note 476, July 1989.
3. C. E. Baum, The Theory of Electromagnetic Interference Control, Interaction Note 478, December 1989; pp. 87–101, in J. Bach Anderson (ed.), Modern Radio Science 1990, Oxford U. press, 1990.
4. C. E. Baum, Representation of Surface Current Density and Far Scattering in EEM and SEM with Entire Functions, Interaction Note 486, February 1992; Ch. 13, pp. 273–316, in P. P. Delsanto and A. W. Saenz (eds.), New Perspectives on Problems in Classical and Quantum Physics, Part II, Acoustic Propagation and Scattering, Electromagnetic Scattering, Gordon and Breach, 1998.
5. C. E. Baum, The SEM Representation of Scattering from Perfectly Conducting Targets in Simple Lossy Media, Interaction Note 492, April 1993; Ch. 3, pp. 47–79, in C. E. Baum (ed.), Detection and Identification of Visually Obscured Targets, Taylor & Francis, 1998.