There is a frame for editing the entries of a BibTeX base. It needs polishing, but basically works.

There is a frame for the whole base, from which items can be added, and the base saved to BibTeX format. This frame needs a GUI from which the user can initiate the program's various functions. At the present it contains a brief listing of the database's items, but that one needs to be reworked and improved quite a lot.

There is a method that (almost, now) loads a database from a bib file. I'm working on this one right now.