Susan M. Bates, Peter Bilazarian; The comparison, benchmarking, and application to source localization of low frequency underwater acoustic propagation models, Proceedings of IEEE OCEANS'90 Conference, pp. 209 - 215, September 1990.
Susan M. Bates; The Parabolic Equation Method Applied to an Ocean Duct with a Parabolic Index of Refraction Squared, Proceedings of MTS/IEEE OCEANS'81 Conference, pp. 26 - 30, September 1981.