The Challenges of Estimating the Number of Victims of Auschwitz

Before 1990, the museum actually couldn't publish the research on the number of victims. The 4 million was protected by the censorship of the communist regime. Pippar practically did the same as other scholars from the Western Europe. In some cases, however, he was more careful about the details and his estimations regarding the number of Polish Jews seems to be much more accurate than the others.