Austria:

Search for abstracts of diploma, doctoral and master theses of the University of Natural Resources and Applied Life Sciences, Vienna (partly also the fulltext of the works is available online).

Research related electronic publications (doctoral theses and working papers) of the Vienna University of Economics and Business.
 

Selection of further resources:

The Document and Publication Server of Humboldt University Berlin contains theses and dissertations (abstracts and fulltext), as well as university publications.

All doctoral theses written at the ETH Zürich from 1999 onwards (abstracts and fulltext)

Many universities run institutional repositories containing theses, research reports and other publications. OASE allows to search the bibliographical data of the most important document servers in Germany and abroad.

Electronic dissertations of the University Hohenheim (abstracts and fulltext)

Dissertations of Uppsala University since 1997 (abstracts and fulltext)