@conference{bozzoli2005balloons, title = {Balloons of Directivity of Real and Artificial Mouth Used in Determining Speech Transmission Index}, author = {Bozzoli, Fabio and Farina, Angelo and Viktorovitch, Michel}, booktitle = {Audio Engineering Society Convention 118}, month = {May}, year = {2005}, url = {https://www.aes.org/e-lib/browse.cfm?elib=13208} }