J. T. Hviid, J. B. Andersen, J. Toftgard and J. Bojer, “Terrain-Based Propagation Model for Rural Areas—An Integral Equation Approach,” IEEE Transactions in Antennas and Propagation, Vol. 43, No. 1, January 1995, pp. 41-46. doi:10.1109/8.366349
 R. Coifman, V. Rokhlin and S. Wandzura, “The Fast Multipole Method for the Wave Equation: A Pedestrian Description,” IEEE Antennas and Propagation Magazine, Vol. 35, No. 3, 1993, pp. 7-12. doi:10.1109/74.250128
 C. C. Lu and W. C. Chew, “Fast Far Field Approximation for Calculating the RCS of Large Objects,” Microwave and Optical Technology Letters, Vol. 8, No. 5, 1995, pp. 238-241. doi:10.1002/mop.4650080506
 C. Brennan and P. Cullen, “Tabulated Interaction Method for UHF Terrain Propagation Problems,” IEEE Transactions on Antennas and Propagation, Vol. 46, No. 5, 1998, pp. 738-739. doi:10.1109/8.668921
 E. O. Nuallain, “A Proposed Propagation-Based Methodology with Which to Address the Hidden Node Problem and Security/Reliability Issues in Cognitive Radio,” International Conference on Wireless Communications, Net- working and Mobile Computing, Dalian, 12-14 October 2008, pp. 1-5.
 D. Holliday, L. DeRaad and G. St-Cyr, “Forward-Back- ward: A New Method for Computing Low-Grazing Angle Scattering,” IEEE Transactions on Antennas and Propagation, Vol. 44. No. 5, 1996, pp. 722-729. doi:10.1109/8.496263
 J. M. Song and W. C. Chew, “Multilevel Fast Multipole Algorithm for Solving Combined Field Integral Equations of Electromagnetic Scattering,” Microwave and Optical Technology Letters, Vol. 10, No 1, 1995, pp. 14-19. doi:10.1002/mop.4650100107