|Brief description of the citation forms|
Entries are listed in one of the three forms:
This form approximates a simplified citation form for the entry. It is created from the database form and does not correspond to the actual data as stored, which is the BibTex form. Given a suitable tool, the BibTex form can be converted to any of the many hundred of standard international styles for bibliographical entries. A simple text-based citation form, as given with this option, can't.
The citation form is linked to various further sources of information. Clicking on any name will search for database entries with this author. Clicking the BibTeX link at the end of the line gives the corresponding BibTex form underlying the entry. The (HP) superscript searches for further information on the author from the University of Trier databank, which includes web home pages, frequent citations, ...
This is the form which is actually present in the database. Descriptions of BibTex can be found here, along with pointers to some of the tools for using it. The BibTeX form is also converted automatically to provide the other bibliographical forms (currently Endnotes, Refer, Citation 7 and RIS) available on the starting page. An XML form is in the pipeline, let me know if this is of any interest and/or if you have any tools for processing such a beast!
This just returns the number of entries that would be returned by the query at hand.