Note authors of interest and check their publication record, in case the dissertation or future research was published elsewhere.
Some scholars have had luck requesting a copy of the bibliography of a dissertation, rather than the entire project.
Full text doctoral dissertations, masters' theses and undergraduate honors theses from Ohio colleges and universities going back to 2000, including Bowling Green State University.
A searchable digital library of electronically-published theses and dissertations dating back to 2005.
Another collection of theses, focusing on electronic theses from European research libraries:
DART-Europe E-theses Portal (DEEP) is a growing collection of theses and dissertations from nearly 300 universities in 17 countries.