Here is Steve Hanke’s paper on 20th century hyperinflations.
Here are a few pieces analyzing the end of the German hyperinflation:
Take a look at Bresciani-Turroni’s book on the German Hyperinflation, chapter 9 on Monetary Reform. He shows that a new Rentenmark was introduced as a redemption claim for gold marks.
In Zimbabwe, foreign currencies have been used as the Zimbabwe dollar’s value vanished.