1. Beckmann, P. and A. Spizzichino, The Scattering of Electromagnetic Waves from Rough Surfaces, Reprinted 1987 by Artech House Inc., Norwood, Massachussetts, USA, 1963.
2. Cooper, B. L., Applications of electromagnetic radiation for exploration of lunar regolith for potential resources, PhD thesis, The university of Texas at Dallas, 1992.
3. Cooper, B. L., J. L. Carter, and C. A. Sapp, New evidence for graben origin of Oceanus Procellarum from lunar sounder optical imagery, J. Geophys. Res., 99(E2), 3799–3812, 1994.
4. Heiken, G., D. Vaniman, and F. M. French, (ed.), Lunar Sourcebook, Cambridge University Press, Cambridge, 1991.
5. Kobayashi, T., H. Oya, and T. Ono, B-scan analysis of subsurface radar sounding of lunar highland region, Earth Planets Space, 54, this issue, 983–991, 2002.