@article{neff1995mutual, title = {Mutual Impedance of Circular Pistons}, author = {Neff, Jr., H. P.}, journal = {J. Audio Eng. Soc}, volume = {43}, number = {9}, pages = {695--699}, year = {1995}, url = {https://www.aes.org/e-lib/browse.cfm?elib=7929} }