@conference{tsukagoshi1979polymer, title = {Polymer-Graphite Composite Loudspeaker Diaphragm}, author = {Tsukagoshi, Tsunehiro and Yokozaki, Shinichi and Hagiwara, Sumio and Arai, Yasuyuki and Yamamoto, Takeo}, booktitle = {Audio Engineering Society Convention 64}, month = {Nov}, year = {1979}, url = {https://www.aes.org/e-lib/browse.cfm?elib=2812} }