(页面存档备份,存于互联网档案馆) & p.4 (页面存档备份,存于互联网档案馆) in 1919 issue of Flight "The German D.F.W. Commercial Four-Engined Biplane" (页面存档备份,存于互联网档案馆), p.2 (页面存档备份,存于互联网档案馆)
SOCIAL NETWORK tops DFW Film Critics Picks. Cinemalogue. December 17, 2010 [December 23, 2010]. (原始内容存档于2023-08-04). Jorgenson, Todd. DFW Film Critics Name