@article{mcknight1979magnetic, title = {Magnetic Design Theory for Tape Recorder Heads}, author = {McKnight, John G.}, journal = {J. Audio Eng. Soc}, volume = {27}, number = {3}, pages = {106--120}, year = {1979}, url = {https://www.aes.org/e-lib/browse.cfm?elib=3222} }