Doherty, Andy; Steve Clark; Robert Care; Mark Dembosky (June 2005). "Why Rails Crack?". Ingenia Online. Archived from the original on 24 December 2012. Retrieved 9 December 2008.
Cobain, Ian; Horsnell, Michael; Binyon, Michael (19 October 2000). "Railtrack knew about faulty line". The Times. p. 1. Archived from the original on 12 January 2021. Retrieved 21 August 2016.
Doherty, Andy; Steve Clark; Robert Care; Mark Dembosky (June 2005). "Why Rails Crack?". Ingenia Online. Archived from the original on 24 December 2012. Retrieved 9 December 2008.
Cobain, Ian; Horsnell, Michael; Binyon, Michael (19 October 2000). "Railtrack knew about faulty line". The Times. p. 1. Archived from the original on 12 January 2021. Retrieved 21 August 2016.