@article{kreutz1994derivation, title = {Derivation of the Quasi-Butterworth 5 Alignments}, author = {Kreutz, Joseph J. and Panzer, Jörg}, journal = {J. Audio Eng. Soc}, volume = {42}, number = {5}, pages = {315--324}, year = {1994}, url = {https://www.aes.org/e-lib/browse.cfm?elib=6945} }