@article{cole1969comments, title = {Comments on "Modulation Distortion in Loudspeakers" and Author's Reply}, author = {Cole, Sr., T. S. and Klipsch, Paul}, journal = {J. Audio Eng. Soc}, volume = {17}, number = {4}, pages = {448--449}, year = {1969}, url = {https://www.aes.org/e-lib/browse.cfm?elib=1564} }