0758ee38_Data_Core__the_Doctor_Who_Wiki__Examples
[Class of story] Behind the scenes information [Explanation] Although behind the scenes comments are pretty much the only way that a story can be disqualified under Rule 3, such information cannot be used in the writing of in-universe articles. [Rule offended] 1 [Examples] 
PCOM: The End of Time establishes that Julie Gardner believes the Woman is the Doctor's mother. But her opinion is not reflected in the story itself, so it can't be included in the in-universe portion of the article about the Woman.
Tardis:Valid sources - Tardis Data Core, the Doctor Who Wiki
Examples