@conference{hemingson2009a, title = {A Practical Comparison of Three Tetrahedral Ambisonic Microphones}, author = {Hemingson, Dan and Sarisky, Mark}, booktitle = {Audio Engineering Society Convention 126}, month = {May}, year = {2009}, url = {https://www.aes.org/e-lib/browse.cfm?elib=14872} }