Quoting "Martin Bagge" <brother@bsnet.se>:
On Mon, 9 Feb 2009, W. Martin Borgert wrote:4. For dblatex languages (en, ca, da, de, es, fi, fr, it, ko, lt, nl, pt_BR, pt, ro, sk, and sv), there is a file hyphenation.tex for fixing hyphenation problems in LaTeX. Use it!Are there any manals for this? I am totally clueless to how it works.
The easiest way is to look at the de/hyphenation.tex file.
\hyphenation{} is, AFAIK, a standard LaTeX command, but I'm
not sure, which is the best reference for LaTeX currently.