@article{putland1994acoustical, title = {Acoustical Properties of Air versus Temperature and Pressure}, author = {Putland, Gavin R.}, journal = {J. Audio Eng. Soc}, volume = {42}, number = {11}, pages = {927--933}, year = {1994}, url = {https://www.aes.org/e-lib/browse.cfm?elib=6922} }