Stelter, Brian (14 de diciembre de 2010), I.B.M. Supercomputer 'Watson' to Challenge 'Jeopardy' Stars, The New York Times, consultado el 14 de diciembre de 2010, «An I.B.M. supercomputer system named after the company's founder, Thomas J. Watson Sr., is almost ready for a televised test: a bout of questioning on the quiz show "Jeopardy." I.B.M. and the producers of "Jeopardy" will announce on Tuesday that the computer, "Watson," will face the two most successful players in "Jeopardy" history, Ken Jennings and Brad Rutter, in three episodes that will be broadcast Feb. 14–16, 2011.».
Is Watson the smartest machine on earth?, Computer Science and Electrical Engineering Department, UMBC, 10 de febrero de 2011, consultado el 11 de febrero de 2011.