@article{engel1988magnetic, title = {Magnetic Tape-From the Early Days to the Present}, author = {Engel, Friedrich K.}, journal = {J. Audio Eng. Soc}, volume = {36}, number = {7/8}, pages = {606--616}, year = {1988}, url = {https://www.aes.org/e-lib/browse.cfm?elib=5136} }