@article{keele2003full, title = {Full-Sphere Sound Field of Constant-Beamwidth Transducer (CBT) Loudspeaker Line Arrays}, author = {Keele, Jr., D. B. (Don)}, journal = {J. Audio Eng. Soc}, volume = {51}, number = {7/8}, pages = {611--624}, year = {2003}, url = {https://www.aes.org/e-lib/browse.cfm?elib=12215} }