How do I add a Wikipedia reference link in the « References » section of a work?

I would like to add the link http://en.wikipedia.org/w/index.php?curid=15688536 The Brothers Ashkenazi to http://www.librarything.com/work/249419/ .

It seeams quite tricky. How do I add a Wikipedia reference link in the « References » section of a work?

I believe you can't. That isn't a member-editable section.

making a test after reading (and understanding ?) WikiThing (LT):Talk and Groups#What are touchstones?

#01:
I. J. Singer
- - - -
#02:
The ||Brothers Ashkenazi (Twentieth-Century Classics) - includes « || »
The Brothers Ashkenazi (Twentieth-Century Classics) - without « || »
The Brothers Ashkenazi - without « || »
- - - -

note:
question: What happens if « || » is included in the title?
answer: It ssems that no touchstone is generated if « || » is included.

additional note:
It might be that the existence of « ( » and «) » inhibits (German: verhindert) the generation of touchstones.

3>

Touchstones do better if they have the dominant work title, so definitely don't use the pipes (||), which are only used for alphabetization in your own catalog (and wouldn't be required after "The" or "A" anyway), and remove edition-specific details like the material in parentheses above.

The Brothers Ashkenazi touchstones just fine for me when I don't add any extra material.