"Commercial information"(PDF). Complete National Rail Timetable. Network Rail. december 2011. s. 41. Arkiveret fra originalen(PDF) 1. september 2012. Hentet 9. januar 2012.
newstatesman.com
Martin, Andrew (13. december 2004). "So, what would you burn?". New Statesman. London. Arkiveret fra originalen 24. december 2007. Hentet 22. september 2007.
"Commercial information"(PDF). Complete National Rail Timetable. Network Rail. december 2011. s. 41. Arkiveret fra originalen(PDF) 1. september 2012. Hentet 9. januar 2012.
Martin, Andrew (13. december 2004). "So, what would you burn?". New Statesman. London. Arkiveret fra originalen 24. december 2007. Hentet 22. september 2007.