E. F. Downs Jr., M. D. Curley;
Instrumentation Methods for Measuring Diving Helmet Noise, Proceedings of MTS/IEEE OCEANS'86 Conference,
pp. 48 - 52, September 1986.
Michael D. Curley, Edward F. Downs Jr.;
Helmet Noise and Divers' Hearing, Proceedings of MTS/IEEE OCEANS'86 Conference,
pp. 53 - 56, September 1986.