@conference{aizawa1981development, title = {Development of a Single Chip IC for Dolby B-C-Type Noise Reduction Systems}, author = {Aizawa, Kohki and Haeno, Akira and Takizawa, Yoshiyuki and Nagashima, Nozomu and Suzuki, Nobuhiro and Yokogawa, Fumihiko}, booktitle = {Audio Engineering Society Convention 70}, month = {Oct}, year = {1981}, url = {https://www.aes.org/e-lib/browse.cfm?elib=11940} }