@misc{indiciae1e4b33cb7352, title = {Effects of very low frequency tones on auditory thresholds.}, author = {Alford, B. and Coats, A. and French, B. and Jerger, J.}, year = {1966}, url = {https://ntrs.nasa.gov/citations/19660065882}, note = {Source identifier: 19660065882} }