@article{iversen2016relationship, title = {Relationship between Voice Coil Fill Factor and Loudspeaker Efficiency}, author = {Iversen, Niels Elkjær and Knott, Arnold and Andersen, Michael A. E.}, journal = {J. Audio Eng. Soc}, volume = {64}, number = {4}, pages = {241--252}, year = {2016}, url = {https://www.aes.org/e-lib/browse.cfm?elib=18132} }