🚀 go-pugleaf

Hi. I'm looking for some suggestions. I'd like a "reference manager"
that works with Wordperfect 5.1 for DOS. I'd like to be able to maintain
a database of references that will eventually be added to the bibliography
of one or more papers. Ideally, I want to accomplish the following:

1) Assign each reference a label. The label can be used in the documents
that will be prepared using Wordperfect. Eventually, these labels should
expand in the paper to a bracketed citation like [1] or [AZ].

2) It should be possible, given the Wordperfect document with labels,
to fetch the appropriate references from the database and put them into
the bibliography. In particular, references in the database that are not
used in the paper should not be included in the bibliography.

3) It should be possible to sort the bibliography either alphabetically
by author or chronologically (by first reference in the paper).

4) Citations in the body of the paper should be able to expand either to
a numeric reference,an alphabetical reference, or possibly to something
like [Author, 1991].

5) Refernces are of different types---for examples, books, book chapters,
and journal articles. It should be possible to format all of these
appropriately. It shopuld also be relatively easy to change the format.

Does such a product exist? I'm willing to spend some money, so I will
consider commercial, shareware, or freeware products, provided they
can do what I want.

Thanks for your advice,
Kevin Coombes <krc@math.umd.edu>