Create tu-dresden-wiwi-german.csl

What do I find under that link? Is the documentation from the TU Dresden really at the homepage of the TU Wien? ;-) More serious: Is there an online documentation of how to cite in your institution?

Maybe, you used the style from the TU Wien as a template? If yes, then include a link like:
``
<link href="https://www.zotero.org/styles/technische-universitat-wien" rel="template"/>
``
or is it `http`?