New Scientist
From Tardis Wiki, the free Doctor Who reference
New Scientist was a magazine.
On 3 July 1999, Geoff Paynter and Mark Barrington, two UNIT operatives, left a cryptic advertisement in the New Scientist. The Fifth Doctor decoded it and met with the operatives. (PROSE: The King of Terror [+]Loading...["The King of Terror (novel)"])
The Seventh Doctor mailed JJ Bartholomew's thesis on time travel to the editor of the New Scientist after her death on Gravonax Island. (AUDIO: Night Thoughts [+]Loading...["Night Thoughts (audio story)"])