1. W J Clegg, K Kendall, J Adv Nanotechnol 1(2018) online
2. J Cook and J E Gordon, Proc Roy Soc Lond A282(1964)508
3. J E Gordon, The new science of strong materials, Penguin, London, UK
4. C Zhan, J Zhao, T Rabczuk, (2018) Composites PartB: Engng. 137(2018) 225–234
5. A Kelly, Strong Solids, Oxford University Press, Oxford, UK 1965.