Dear Gap-Forum,

Richard Rossmanith wrote:

forum. Maybe there are some (old) German files somewhat close to a manual, or
some descriptions, (internally) available in Aachen?

Joachim Neub"user already answered that there is no such version of the
manual.

I nevertheless thought this question was a good point to mention
documentation in general (and advertise some web pages):

There are basically no ``development notes'' for GAP3 that would be
reasonable to make public. (Such notes only exist in the heads of the authors
and partially in their eMail archives.)
For GAP4 there are some internal technical notes about the inner workings of
GAP. We hope to incorporate these step by step into the manual(s).

I should also note that several of the GAP authors have made their Diploma
and PhD theses available on the web. You can find them via the authors' home
pages, following the links on:

http://www-gap.dcs.st-and.ac.uk/~gap/Info/authors.html

These theses are not (emphatically not!) manuals, but if you want to
know how or why the algorithms work or if you want larger examples
of research done using GAP they might be of interest.
(They are written in German, however.)

We also try to maintain a bibliography of published work in general which
refer to GAP. (see http://www-gap.dcs.st-and.ac.uk/~gap/Bib/index.html )
Some of the papers listed there also contain examples of applications of GAP.

Best regards,

Alexander Hulpke