1. Standard Test Method for Shock Absorbing Characteristics of Package Cushioning Materials;ASTM Designation: D1596-78a;Annual Book of ASTM Standards,1985
2. Technical Information on Packaging with Expanded Styropor;BASFTM,1978
3. Numerical Optimisation Techniques;Evtushenka,1985
4. Principles of Package Development;Griffin,1982