IMDb.com : Elfi von Dassanowsky - Biography, filmography, and awards of the actress also known as Elfi Dorena. - http://us.imdb.com/name/nm0902133/
Elfi Von Dassanowsky - Interview by Hyde Filippo from the German-Hollywood Connection. - http://www.germanhollywood.com/dass.html
WIC Biography : Elfi Von Dassanowsky - About the life and career of the Austrian film innovator and opera singer. - http://www.wic.org/bio/edassano.htm