@article{townsley1970a, title = {A More Useful Form of the Minimum Loss Impedance Matching Pad}, author = {Townsley, Ralph}, journal = {J. Audio Eng. Soc}, volume = {18}, number = {1}, pages = {74, 76, 78, 80, 82}, year = {1970}, url = {https://www.aes.org/e-lib/browse.cfm?elib=1521} }