1. W. A. Nash Strength of Materials (Schaum Publishing Co., USA, 1957).
2. P. Atkins J. de Paula Atkins' Physical Chemistry, 8 th ed. (Oxford University Press, 2006).
3. Negative compressibility, negative Poisson's ratio, and stability
4. J. N. Grima presented at the Fourth International Workshop on Functional Materials FNMA'07, Gdansk, Poland, September 2007.
5. J. N. Grima presented at the Fourth International Workshop on Auxetics and Related Systems, Malta, September 2007.