1. Bowman JJ, Senior TBA, Uslenghi PLE (1987) Electromagnetic and acoustic scattering by simple shapes. Hemisphere Pub. Corp., New York
2. Morse PM, Feshbach H (1953) Methods of theoretical physics. McGraw-Hill, New York
3. Stakgold I (1967) Boundary value problems in mathematical physics. Macmillan, New York
4. Van Nhieu MT (1988) A singular perturbation problem: scattering by a slender body. J Acoust Soc Am 83(1): 68–73
5. Harrington RF (1968) Field computation by moment methods. Macmillan, New York