- ADT – Australasian Digital Theses Program
- British Library – EThOS (Electronic Theses Online Service)
- Centre National de la Recherche Scientifique
- Cornell University : Theses and Dissertations
- Florida State University
- The Göttingen State and University – Mathematical dissertations
- Helsinki University of Technology
- International Institute for Geo-Information Science and Earth Observation
- Swiss Federal Institute of Technology Zurich – Doctoral Theses
- University of Groningen – University Digital Archive
- Kyoto University – Thesis or Dissertation
- Université Laval
- The University of Maine
- The University of Nottingham – Nottingham eTheses
- The University of Oklahoma – College of Engineering
- University of Wisconsin-Stout
- Wageningen University – Dissertations Abstracts
