1891-1977 1939-1945 20thcentury austria bibliotheekbeleid bibliotheekopleidingen books bookthefts cologne confiscations confiscationsandcontributions destructionandpillage europe exhibitions germany history historyösterreichischenationalbibliothek jewishproperty librariesandeducation maria reuter rudolf steinhoff worldwar österreichischenationalbibliothekwien