@article{takahashi1983glass, title = {Glass-Fiber and Graphite-Flake Reinforced Polyimide Composite Diaphragm for Loudspeakers}, author = {Takahashi, Susumu and Katoh, Tomomi and Taguchi, Sadao and Watanabe, Toshio}, journal = {J. Audio Eng. Soc}, volume = {31}, number = {10}, pages = {723--728}, year = {1983}, url = {https://www.aes.org/e-lib/browse.cfm?elib=4551} }