1. A computer search of Chemical Abstracts (American Chemical Society, Washington, DC) using DIALOG (DIALOG Information Services) for 1967 to May 1987 resulted in the numbers quoted.
2. The Physics of Glassy Polymers;Haward,1973
3. Physical Aging Processes in Molecular and Atomic Glasses;Special Issue of Polym. Eng. Sci.,1984
4. An overview of the nonequilibrium behavior of polymer glasses
5. Relaxation in Glass and Composites;Scherer,1986