Stephen Baker, Final Jeopardy: Man Vs. Machine and the Quest to Know Everything (Houghton Mifflin Harcourt, 2011), стр. 19.
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“IBM and ‘Jeopardy!’ relive History With Encore Presentation of ‘Jeopardy!’”, Did You Know…, 2013, http://www.jeopardy.com/showguide/abouttheshow/showhistory/.
