OnCite in use:
UNDER CONSTRUCTION - UNDER CONSTRUCTIONOnCite is the project name for University College London's online publications database, implemented in MySQL and PHP. It is open-source under the terms of the Academic Free Licence.
For an indication of scale: UCL's database contains (at the time of writing) over 74,000 publications records, 3,700 users, 120 departments, and over a hundred administrators.
A file release has not been prepared recently, so the best way to access the source code is via the CVS repository which stores the most up-to-date version of the source code.
(Note: The project was originally named MyOPIA, but subsequently renamed to OnCite.)