@article{huber2013on, title = {On the Design of Allpole Filters that Are Perfectly Matched to Specifications}, author = {Huber, Klaus}, journal = {J. Audio Eng. Soc}, volume = {61}, number = {12}, pages = {1022--1025}, year = {2013}, url = {https://www.aes.org/e-lib/browse.cfm?elib=17079} }