1. http://en.wikipedia.org/wiki/Henry_Cort
2. R. A. Mott (ed. P. Singer), Henry Cort: the great finer (Metals Society, London 1983), 31-36; English patents, nos. 1351 and 1420
3. http://www.spectraaluminum.com/article-history-of-aluminum-extrusion
4. H. Valberg; Applied Metal Forming Including FEM Analysis, Cambridge University Press, 2010, Ch.14 Finite Element Analysis, pp.219-230