WICKHAM, Alex. Britain’s plan for when Queen Elizabeth II dies. Politico, 2021-09-03. Dostupné online [cit. 2022-09-09].
scotsman.com
HEPBURN, David. What are Operation Unicorn, Operation London Bridge and Operation Spring Tide? The secret plan outlining what would happen if the Queen dies in Scotland - and what happens next. The Scotsman, 2022-09-08. Dostupné online [cit. 2022-09-09].
theguardian.com
KNIGHT, Sam. 'London Bridge is down': the secret plan for the days after the Queen’s death. The Guardian (London: Guardian News and Media Limited), 2017-03-17. Dostupné online [cit. 2022-09-09]. ISSN0261-3077.
usatoday.com
eu.usatoday.com
Operation London Bridge and Operation Unicorn explained following Queen Elizabeth's death. USA Today, 2022-09-09. Dostupné online [cit. 2022-09-09].
worldcat.org
KNIGHT, Sam. 'London Bridge is down': the secret plan for the days after the Queen’s death. The Guardian (London: Guardian News and Media Limited), 2017-03-17. Dostupné online [cit. 2022-09-09]. ISSN0261-3077.
youtube.com
BBC announces the death of Queen Elizabeth II. Guardian News (YouTube), 2022-09-08. Dostupné online [cit. 2022-09-09].