@article{bonello1984distortion, title = {Distortion in Positive- and Negative-Feedback Filters}, author = {Bonello, Oscar J.}, journal = {J. Audio Eng. Soc}, volume = {32}, number = {4}, pages = {239--245}, year = {1984}, url = {https://www.aes.org/e-lib/browse.cfm?elib=4511} }