2022-04-29 [2022-05-22]. (原始内容存档于2022-05-27) (西班牙语). Cabrero, José E. El hangar de J. A. Bayona en Sierra Nevada. El Diario Montañés. 2021-12-15 [2022-05-22]
Local Website about activities on and around Area 51 IMDB Reference: Hangar18, 1980(页面存档备份,存于互联网档案馆) Google Maps satellite image(页面存档备份,存于互联网档案馆) Photographs