A print journal article: J. Fordham, "Pete's Dragon", Cinefex, no. 137, Apr. 2014, pp. 12-35.
An online journal article: B. Desowitz, "Weta Breathes Fire into the Menacing Dragon of 'The Hobbit'", 16 Dec. 2013, www.awn.com/vfxworld/weta-breathes-fire-menacing-dragon-hobbit.
A podcast: M. Seymour, "The Hobbit: The Desolation of Smaug", FXpodcast, no. 268, http://media.fxguide.com/fxpodcast/fxg-131218-smaug.mp3
An online video: M. Seymour, "Behind the Scenes of Weta Digital’s Smaug" (video clip), 5 Feb. 2014, www.fxguide.com/quicktakes/behind-the-scenes-of-weta-digitals-smaug/
A book: J.R.R. Tolkien, The Hobbit, or, There and Back Again, Houghton Mifflin, 2001.