On the Experimental Determination of the Relative Intensities of Sounds; and on the Measurement of Powers of Various Substances to Reflect and to Transmit Sonorous Vibrations
Mayer, A. M. (1873). On the experimental determination of the relative intensities of sounds; and on the measurement of powers of various substances to reflect and to transmit sonorous vibrations. American Journal of Science, s3-5(26), 123–125. https://doi.org/10.2475/ajs.s3-5.26.123