1. Sponge Rubber and Latex Foam;Zimmerman,1972
2. ASTM D 1056-85, “Standard Specification for Flexible Cellular Materials—Sponge or Expanded Rubber,” in Vol. 09. 02, Annual Book of ASTM Standards,
3. ASTM D 1055–90, “Standard Specification for Flexible Cellular Materials — Latex Foam,” in Vol. 09, 02, Annual Book of ASTM Standards.
4. The Flammability of Neoprene Cushioning Foam;Morford;Journal of Fire and Flammability,1977
5. New High Temperature-Resistant Plastic Foams;Hardy,1973