"Willem Dafoe Talks OUT OF THE FURNACE, Playing Conflicted Characters, Bringing an Eastern European Flair to His Character, and Future Projects". Interview with Sheila Roberts, collider.com. December 6, 2013.
John Milton (1824). “The Poetical Works of John Milton: With Notes of Various Authors, Principally from the Edition of Thomas Newton, Charles Dunster, and Thomas Warton, to which is Prefixed, Newton's Life of Milton”, p.425