@article{bernfeld1979airborne, title = {Airborne Noise: A Personal Calculator Program for A-Weighted Sound-Pressure Level, Noise-Rating Evaluation, and Preferred Noise Criterion}, author = {Bernfeld, Ben}, journal = {J. Audio Eng. Soc}, volume = {27}, number = {11}, pages = {899--904}, year = {1979}, url = {https://www.aes.org/e-lib/browse.cfm?elib=3168} }