@conference{levy1958a, title = {A Compact, Single-Cabinet, Stereophonic Speaker System}, author = {Levy, Sidney E. and Sioles, George W. and Brociner, Victor}, booktitle = {Audio Engineering Society Convention 10}, month = {Sep}, year = {1958}, url = {https://www.aes.org/e-lib/browse.cfm?elib=141} }