1. Cellular Solids: Structure and Properties;Gibson,1997
2. Aluminum foams produced by liquid-state processes
3. I. Jin, D. Kenny, H. Sang, Method of producing lightweight foamed metal, U.S. Patent No. 4 973 358, 1990.
4. S. Akinyama, S. Ueno, K. Imagawa, A. Kitahara, S. Nagata, K.M. Amagasaki, T.N. Amagasaki, M.I. Amagasaki, Foamed metal and method of producing same, U.S. Patent No. 4 713 277, 1987