2. I credit Backes remarks based on my memory of his speech.
3. Computers as Theater Brenda Laurel 1993 p.135
4. Ibid. p. 101
5. Ibid. p. 20
6. Ibid. p. 56
7. Ibid. p. 60
8. Ibid. p. 61
9. Ibid. p. 73
10.Ibid. p. 103
11.Ibid. p. 105
12.Ibid. p. 101
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