@conference{holbrook1988multichannel, title = {Multichannel and Surround Sound Reinforcement: Past, Present, and Future}, author = {Holbrook, Kyle A.}, booktitle = {Audio Engineering Society Conference: 6th International Conference: Sound Reinforcement}, month = {May}, year = {1988}, url = {https://www.aes.org/e-lib/browse.cfm?elib=4646} }