D. D. Caulfield, T. Opishinski, R. Tarini; Absorption estimation in marine sub-bottom layers, Proceedings of MTS/IEEE OCEANS'00 Conference, pp. 1907 - 1917, September 2000.
David D. Caulfield; Preliminary relationships between precision acoustic observations and core geotechnical and chemical properties at contaminated sites, Proceedings of MTS/IEEE OCEANS'99 Conference, pp. 1138 - 1143, September 1999.
David D. Caulfield, John Filkins, Richard McGee; Calibration and multiple sound sources in marine geotechnical pollution surveys in rivers, Proceedings of MTS/IEEE OCEANS'96 Conference, pp. 176 - 187, September 1996.