John Milton, Henry John Todd (1852). “The Poetical Works of John Milton: With Notes of Various Authors; and with Some Account of the Life and Writings of Milton, Derived Principally from Original Documents in Her Majesty's State-paper Office”, p.522
"Action Star Donnie Yen Talks DRAGON, Why He Turned Down THE EXPENDABLES 2, Period Versus Modern, Whether Breaking Out in the U.S. is a Goal, and More". Interview with Bill Graham, collider.com. November 29, 2012.