@article{mcknight1967absolute, title = {Absolute Flux and Frequency Response Characteristics in Magnetic Recording: Measurements, Definitions, and Standardization}, author = {McKnight, John G.}, journal = {J. Audio Eng. Soc}, volume = {15}, number = {3}, pages = {254--272}, year = {1967}, url = {https://www.aes.org/e-lib/browse.cfm?elib=1095} }