Search across more than 800,000 doctoral dissertations and Habilitationsschriften from universities outside of the U.S. and Canada. Dissertations may be requested through the interlibrary loan service, ILLiad.
IRis is a digital archive that collects, manages, preserves, and shares the intellectual output and historical record of Northeastern University. Beginning in 2008, Masters and PhD dissertations completed at Northeastern University are archived in full text in IRis along with other university research and publications.
NDLTD is a freely searchable catalog of theses and dissertations contributed by member institutions from around the world. When viewing search results, click "view source record" to link to detailed information and the full text of the thesis or dissertation, if available.
With over 2.7 million entries, Proquest Dissertations is the authoritative resource for searching doctoral dissertations and master's theses from around the world, from 1861 to the present. Full text PDFs are usually available to download for theses published since 1997.
Beginning in 2008, Northeastern University Masters and PhD students submit their completed dissertations to this "database of record" for graduate research.