Example sentences (3)
Duden, Die deutsche Rechtschreibung, 21st edition, p. 133. For denken, see below.
It is the Austrian counterpart to the German Duden and contains a number of terms unique to Austrian German or more frequently used or differently pronounced there.
The Duden (the German standard dictionary) now calls this tradition (which was actually never written down as an official rule) outdated and no longer valid, but many writers still follow it.