You tried going to http://www.dgvc-online.de/2011/05/nach-und-wiederholungspruefung-tvt1/, and it doesn't exist. All is not lost! You can search for what you're looking for.
Impressum
DGVC e.V.
c/o TU Dresden
MW, IVU
01062 Dresden
vorstand(at)dgvc-online.de