- Caretaker (Star Trek: Voyager) by L.A. Graf, 1994-02-06
- Star Trek - 35 Years! 35 Greatest Moments! 35 Covers. Robert Picardo as the Doctor. by TV Guide, 2002
- Star Trek Voyager Magazine #18 Sept. 1998 Robert Picardo
- TV Guide Star Trek - 35 years! 35 Greatest Moments! 35 Covers. Robert Picardo as the Doctor. One of Seven Voyager Covers. (Star Trek 35th Aniversary, Volume 50, No. 16, Issue #2560)
- The Hologram's Handbook (Star Trek Voyager) by Robert Picardo, 2002-04-09
- Star Trek Voyager - The Hologram's Handbook
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