Nancy Tartaglione. Nicholas Hoult, Luke Evans & Henry Cavill Suit Up For War Drama ‘Sand Castle’; Mark Gordon Co, Treehouse Producing. deadline.com. 2015-10-08
Denmark: A Modern History. Taylor & Francis. 1986. ISBN 0-7099-1468-7. Lake, Jon & Mark Styling. B-52 Stratofortress Units in Combat 1955–73. Osprey Publishing