1. Tensile mechanical behaviour of quenched and annealed isotactic polypropylene over a wide range of strain rates;Alberola;J. Mater. Sci.,1995
2. ASTM D 2221-84, Creep Properties of Package Cushioning Materials, American Society for Testing and Materials, PA.
3. Compressive creep of flexible polyurethane foams;Campbell;J. Appl. Polym. Sci.,1979
4. Structure-property relationships in thermoplastic foams;Clutton,1991