@article{clark1964dependence, title = {Dependence of Timbre on the Tonal Loudness Produced by Musical Instruments}, author = {Clark, Jr., Melville and Milner, Paul}, journal = {J. Audio Eng. Soc}, volume = {12}, number = {1}, pages = {28--31}, year = {1964}, url = {https://www.aes.org/e-lib/browse.cfm?elib=764} }