refdb is a free and portable reference and notes database as well as a bibliography application that serves a similar purpose for SGML, XML, and LaTeX documents like Reference Manager or EndNote do for word processor documents. The bibliography part is something like bibtex for markup languages. refdb consists of an application server which interacts with a relational database on the server side and a variety of clients on the workstation side. These clients perform the common tasks of a reference database, like adding and searching entries, as well as generating bibliographies.