@article{hawley1969comments, title = {Comments on "Self-Contained Condenser Microphones" and Author's Reply}, author = {Hawley, M. S. and Swisher, Charles F.}, journal = {J. Audio Eng. Soc}, volume = {17}, number = {4}, pages = {447, 448}, year = {1969}, url = {https://www.aes.org/e-lib/browse.cfm?elib=1565} }