@conference{liebich1958development, title = {Development of a Full-Range Transducer Assembly for the Generation of High Intensity Sound}, author = {Liebich, Richard E. and King, John A.}, booktitle = {Audio Engineering Society Convention 10}, month = {Sep}, year = {1958}, url = {https://www.aes.org/e-lib/browse.cfm?elib=151} }