http://www.dart-europe.eu/basic-search.php
DART-Europe is a partnership of research libraries and library consortia who are working together to improve global access to European research theses. DART-Europe is endorsed by LIBER (Ligue des Bibliothèques Européennes de Recherche), and it is the European Working Group of the Networked Digital Library of Theses and Dissertations(NDLTD).
The DART-Europe partners help to provide researchers with a single European Portal for the discovery of Electronic Theses and Dissertations (ETDs), and they participate in advocacy to influence future European e-theses developments. DART-Europe offers partners a European networking forum on ETD issues, and may provide the opportunity to submit collaborative funding applications to achieve DART-Europe’s vision for ETDs.
Aus Österreich gibt es Dissertationen der WU Wien, die daran teilnimmt, sowie – eher per Zufall – der Universität Wien, etwa wenn Online-Dissertationen von einem anderen Partnerprojekt eingestellt worden sind.