UFOs regularly spotted in restricted U.S. airspace, report on the phenomena due next month. www.cbsnews.com [online]. [cit. 2021-06-30]. Dostupné online. (anglicky)
CNN, Scottie Andrew. The US Navy just confirmed these UFO videos are the real deal. CNN [online]. [cit. 2021-06-30]. Dostupné online.
CNN, Chandelis Duster. Defense Department confirms leaked video of unidentified aerial phenomena is real. CNN [online]. [cit. 2021-06-30]. Dostupné online.
CNN, Harmeet Kaur. US intelligence agencies have 180 days to share what they know about UFOs, thanks to the Covid-19 relief and spending bill. CNN [online]. [cit. 2021-07-16]. Dostupné online.
PACNER, Karel. Mimozemšťané u nás přistáli! Ufologii odstartovala studená válka, dnes je to směs víry a obchodu. DINGIRonline. 22.12.1999, roč. 2., čís. 4., s. 19 – 21. Dostupné online. ISSN 1212-1371
2022 Annual Report on Unidentified Aerial Phenomena [online]. OFFICE OF THE DIRECTOR OF NATIONAL INTELLIGENCE, 2023-01-12 [cit. 2023-04-22]. Dostupné online.
Pentagon video shows mysterious flying orb, says 650 UFOs are being tracked - National | Globalnews.ca. Global News [online]. [cit. 2023-04-22]. Dostupné online. (anglicky)
Head of Pentagon’s secret ‘UFO’ office sought to make evidence public [online]. [cit. 2021-06-30]. Dostupné online.
UFOs & National Security with Luis Elizondo, Former Director, Advanced Aerospace Threat Identification Program. Washington Post. Dostupné online [cit. 2021-06-30]. ISSN0190-8286. (anglicky)
KELLY, John. The month that E.T. came to D.C.. Washington Post. 2012-07-20. Dostupné online [cit. 2023-04-22]. ISSN0190-8286. (anglicky)
UFOs & National Security with Luis Elizondo, Former Director, Advanced Aerospace Threat Identification Program. Washington Post. Dostupné online [cit. 2021-06-30]. ISSN0190-8286. (anglicky)
KELLY, John. The month that E.T. came to D.C.. Washington Post. 2012-07-20. Dostupné online [cit. 2023-04-22]. ISSN0190-8286. (anglicky)