@conference{choi2010a, title = {A Differential Approach for the Implementation of Superdirective Loudspeaker Array}, author = {Choi, Jung-Woo and Kim, Youngtae and Ko, Sangchul and Kim, Jungho}, booktitle = {Audio Engineering Society Convention 128}, month = {May}, year = {2010}, url = {https://www.aes.org/e-lib/browse.cfm?elib=15329} }