"The Papers of Sir Denys Wilkinson". Archivesearch. Churchill Archives Centre, Churchill College, Cambridge University. Archived from the original on 4 October 2021. Retrieved 30 April 2016.
"The Papers of Sir Denys Wilkinson". Archivesearch. Churchill Archives Centre, Churchill College, Cambridge University. Archived from the original on 4 October 2021. Retrieved 30 April 2016.