what the font

(x) Typeface used in the book "Elementarteilchen" - DTL Documenta {Jan E}

Hi, I've been trying to figure out the name of this lovely Font shown below.
That's a scan of page 14 of "Elementarteilchen", english "Atomised" from Michel Houellebecq.
Seems to be a tricky font - no results with "What the font" or the like.

The "?" and the "ß" are strikingly.

Thanks a lot for the help!