
Interview in 2006, as quoted in "Gary Gygax, Game Pioneer, Dies at 69" in The New York Times (5 March 2008) http://www.nytimes.com/2008/03/05/arts/05gygax.html?_r=1&ref=arts&oref=slogin
GameSpy interview, Pt. 2 (16 August 2004) http://pc.gamespy.com/articles/538/538820p3.html
Interview in 2006, as quoted in "Gary Gygax, Game Pioneer, Dies at 69" in The New York Times (5 March 2008) http://www.nytimes.com/2008/03/05/arts/05gygax.html?_r=1&ref=arts&oref=slogin
Gameplay magazine
1999 Lecture—"A Century of Controversy over the Foundations of Mathematics" at U. Massachusetts at Lowell, quoted in [2012, Conversations with a Mathematician: Math, Art, Science and the Limits of Reason, Springer, https://books.google.com/books?id=DczTBwAAQBAJ&pg=PA15] p. 15
Source: 1970s, "Three Types of Effectiveness Studies," 1977, p. 101 ; As cited in: Diehl-Taylor (1997)
http://www.independent.co.uk/sport/football/news-and-comment/andrea-pirlo-dream-xi-paul-scholes-the-only-englishman-as-juventus-star-leaves-out-cristiano-ronaldo-in-favour-of-pippo-inzaghi-9992885.html
Andrea Pirlo