1. Ezra, A.A. and Fay, R.J. (1972) An assessment of energy absorbing devices for prospective use in aircraft impact situations, in Dynamic Response of Structures (eds G. Herrmann and N. Perrone), Pergamon.
2. Backman, H.E. and Goldsmith, W. (1978) The mechanics of penetration of projectiles and targets. International Journal of Engineering Science, 16, 1–99.
3. Kornhauser, M. (1967) Structural Effects of Impact, Cleaver-Hume
4. Energy absorption at hypervelocities is dealt with in Backman and Goldsmith (1978) and Zukas et al. (1982)
5. Gehring, J.W. Theory of impact on thin targets and shields and correlation with experiment, in Kinslow (1970)