1. Kamioka N. Friction material of brake. Japanese Laid-Open Patent Publication 63-219924, 1988
2. Ohya K, Sayama N. Friction material for brake. US Patent 5344854, 1994
3. Kojima T, Sakamoto H, Kamioka N, Tokumura H. Process for the production of friction materials. US Patent 5279777, 1994
4. Carbon yield from polymers. In: Carbon–carbon composites. London: Chapman-Hall; 1993. p. 120–1. [Chapter 4]
5. What are carbon–carbon composites;Thomas,1993