Launched in 2013, OATD is an index that provides access to freely available full-text graduate-level theses and dissertations.
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The Thesaurus Linguae Graecae online is a digital collection of most literary texts written in Greek from Homer to the fall of Byzantium in AD 1453.
TRID is the world's largest and most comprehenxive bibliographic resource on treansportation research information. Many records contain links to full-text documents.